Astma is een van de meest beheersbare veelvoorkomende aandoeningen, en de behandeling die het onder controle houdt, is het ingeademde steroïd dat de luchtwegen kalmeert. De blauwe verlichter waar de meeste mensen op terugvallen, verlicht een aanval in het moment, maar laat de onderliggende ontsteking onbehandeld.
Het beeld is de afgelopen jaren veranderd. Een laagdosering steroïd gecombineerd met een snelwerkende opener, ingenomen wanneer symptomen optreden, voorkomt nu ernstige aanvallen veel beter dan een verlichter die alleen wordt gebruikt.
Practice Ranking
Every practice we track for Asthma: getting it under control, ranked by how well the evidence supports it for this condition. Strength describes the evidence, not our endorsement.
5 practices · 2 to start with
| # | Practice | Evidence | Type | Cost | Effort | Results In | Add to plan |
|---|---|---|---|---|---|---|---|
| 1 | Quitting Smoking: What It Does to the Body and the Methods That Actually Work Improves lung function and control; the single biggest change for a smoker. | Strong | Pro | Free to $$ | Hard | Days to Longer | |
| 2 | Breathwork and HRV: The Research, the Practice, and How to Start Breathing retraining eases day-to-day symptoms and quality of life, though it does not change how your lungs test. | Moderate | Self-Directed | Free | Easy | Days to Weeks | |
| 3 | Zone 2 Cardio: What the Training Does, and Where the Claims Run Ahead of the Evidence Regular aerobic training builds fitness and is safe in asthma that is reasonably controlled. | Moderate | Self-Directed | Free to $$ | Moderate | Weeks to Months | |
| 4 | Weight Loss: The Single Strongest Lever for Metabolic Health, and What the Trials Actually Show Improves control in people with obesity. | Moderate | Self-Directed | Free to $$$ | Moderate to Hard | Weeks to Months | |
| 5 | Vitamin D No overall effect on attacks; worth correcting only a genuine deficiency. | Emerging | Supplement | $ | Easy | Weeks to Months | |
Default order puts the best-supported practices first, with self-directed care ahead of clinical options. Click any row to open the practice.
What It Is
Asthma is an inflamed, over-reactive airway. When a trigger sets it off, the airway narrows, swells, and fills with mucus, and that is the wheeze, cough, chest tightness, and breathlessness. Cold air, an allergen, a cold virus, exercise, or smoke can each tip a sensitive airway into a flare.
The inflammation is the disease; the narrowing is the symptom. Different inhalers treat the two, and only the one that treats the inflammation alters its course.
Asthma comes in a few recognizable patterns:
- Allergic (eosinophilic) asthma is the most common. An allergic type of inflammation drives it, it often runs alongside hay fever and eczema, it frequently starts in childhood, and it responds best to inhaled steroids.
- Non-allergic asthma more often begins in adulthood, is sometimes linked to weight or aspirin sensitivity, and can be less steroid-responsive.
- Exercise-induced bronchoconstriction is wheeze during or shortly after exertion, especially in cold, dry air, a reason to control the asthma.
- Severe asthma keeps flaring despite high-dose inhaled steroids taken correctly, often with a high eosinophil count. Modern biologic drugs were built for this group.
Asthma, hay fever, and eczema tend to occur together as one allergic tendency, so an uncontrolled nose can worsen the chest below it.
What controls it
The controller keeps you well, so take it every day and do not stop when symptoms settle down.
A daily inhaled corticosteroid, the controller, calms the airway inflammation that drives asthma, and it is the treatment that changes the disease. In the START trial of 7,241 people with recent, mild asthma, a low daily dose nearly halved the risk of a severe attack over three years (hazard ratio 0.56). The blue reliever does the opposite job. It opens the airway for a few hours and leaves the inflammation untouched.
The larger shift of recent years is in what you reach for when symptoms flare. A low-dose steroid combined with fast-acting formoterol, taken only as needed, guards against severe attacks much more than a plain blue reliever used alone. It cut severe attacks to about a third of the reliever-alone rate in the SYGMA 1 trial. The real-world Novel START trial put the reduction at about half, and both used far less steroid than a daily controller. This is a change to make with your prescriber.
How quickly you use up the reliever is itself a measure of how well the asthma is controlled. In the SABINA cohort of 365,324 people, those going through more than two reliever canisters a year had steadily more attacks and a higher risk of dying. The risk climbed with each extra canister, reaching up to 77% more attacks in people collecting 11 or more a year. People who get through a lot of reliever often have worse asthma to begin with, so this does not prove the reliever itself causes the harm. A canister running down fast is a reliable prompt to have the treatment reviewed.
Then come the levers that support the core treatment and never replace it:
- Inhaler technique and not smoking. Much of the disappointment with inhalers comes down to how they are used, so a few minutes having your technique checked makes a large difference. Smoking counts just as much. In a crossover trial, non-smokers with asthma improved clearly on a course of steroid tablets, with FEV1 up 237 mL. Active smokers got no benefit on any measure, and ex-smokers responded partway. Smoking blunts the very treatment that controls asthma, and stopping restores some of the response.
- Losing weight, if you carry extra. This is the free, self-directed lever, and its effect is large. In a randomized trial, a loss of 5 to 10% of body weight improved asthma control in 58% of overweight and obese adults, and quality of life in 83%. Much adult, weight-linked asthma tracks the ultra-processed diet built around fat, sugar, and salt, so changing what you eat targets the share of asthma that extra weight drives.
- Staying active. Across 21 trials, regular training raised fitness by 4.92 mL/kg/min of oxygen uptake, improved quality of life, and was well tolerated. It did not worsen asthma. If exercise reliably brings on symptoms, that points to asthma that needs tighter control.
- Breathing retraining. In a Cochrane review of 22 trials and the 655-adult BREATHE trial, breathing retraining improved asthma quality of life by 0.42 points on the AQLQ. On that 1–7 scale, about 0.5 is the smallest change patients notice. Lung function and airway inflammation barely changed. It eases symptoms and helps you cope.
Two treatments are aimed at specific groups:
- Allergen immunotherapy, where a confirmed allergy clearly drives the asthma, lowered symptoms and the medication people needed across 88 trials. Injection immunotherapy carries a small but real risk of a serious allergic reaction. About one in nine people have a whole-body allergic reaction, so it is given somewhere staff can treat one if it happens.
- A biologic, for severe asthma that keeps flaring despite correctly used high-dose inhaled steroids, roughly halves attacks in the subgroup whose inflammation is eosinophilic. In the MENSA trial, mepolizumab cut exacerbations by about half, 47 to 53%, in people identified by a high blood eosinophil count. Biologics are specialist treatments layered on top of inhaled steroids, confirmed with blood tests first.
To recover from a bad attack, a short course of steroid tablets cut the chance of relapsing in the first week (relative risk 0.38). It also reduced return hospital visits, with no clear rise in side effects. It is a short rescue course, started early and then stopped.
The Research & Studies
Everything here is based on the research we have collected and checked, sorted into groups and ordered with the strongest evidence first. Click any claim to open the studies behind it.
Respiratory
A daily inhaled steroid nearly halved severe attacks over three years
A low daily dose of an inhaled steroid nearly halved the chance of a severe asthma attack over three years, compared with a dummy inhaler, in people with early, mild asthma. It works by calming the airway over time, so it is taken every day whether or not you feel symptoms.
In the START trial, 7,241 people aged 5 to 66 with mild persistent asthma of recent onset were randomized to once-daily low-dose inhaled budesonide or placebo for 3 years on top of usual medication. The time to a first severe asthma-related event was longer on budesonide: 117 of 3,597 on budesonide versus 198 of 3,568 on placebo had at least one severe exacerbation, a hazard ratio of 0.56 (95% CI 0.45 to 0.71). The steroid group also needed fewer courses of oral steroids and had more symptom-free days. Measured in: 7,241 people aged 5 to 66 with mild persistent asthma of less than two years' duration, not previously on regular steroids, in a randomized double-blind trial across 32 countries. This was a mild, recent-onset population, so the size of the benefit will differ in longer-standing or more severe asthma, and the low-dose inhaled steroid slightly reduced three-year growth in the youngest children (by about 0.5 inches (1.3 cm)). It calms inflammation over time, not opening the airway on the spot, so it is taken every day, not for symptoms.
Who this may not transfer to:Both sexes were enrolled across children and adults; the trial does not report the exacerbation effect separately by sex.
Treat the controller inhaler as the core of asthma treatment and take it daily, not only when symptoms flare. The benefit builds with regular use and fades if it is stopped.
The study · 1
Pauwels et al., early intervention with budesonide in mild persistent asthma (the START trial), a randomised double-blind trial · Lancet 2003;361(9363):1071-1076
An as-needed steroid-formoterol reliever cut severe attacks to about a third of a blue reliever's rate
Taking a combined steroid-and-opener inhaler only when symptoms flared cut severe attacks to about a third of the rate seen with a plain blue reliever used the same way, and used far less steroid than a daily controller. This is the modern move away from reaching for a blue inhaler alone.
In the SYGMA 1 trial, 3,849 people aged 12 and over with mild asthma were randomized to an as-needed inhaled steroid-plus-formoterol combination, an as-needed short-acting reliever (terbutaline) alone, or maintenance budesonide plus reliever. The annual rate of severe exacerbations was 0.07 with the as-needed steroid-formoterol versus 0.20 with the reliever alone, a rate ratio of 0.36 (95% CI 0.27 to 0.49), while delivering only about 17% of the inhaled steroid dose of daily maintenance therapy. Measured in: 3,849 people aged 12 and over with mild asthma in a 52-week randomized double-blind trial. This is mild asthma, where whether a daily controller is even needed is a fair question; the as-needed steroid-formoterol matched the exacerbation protection of daily maintenance steroid while using far less steroid, but daily maintenance gave slightly better day-to-day symptom control. It is not a license to skip a prescribed daily controller in moderate or severe asthma.
Who this may not transfer to:Both sexes were enrolled; the trial does not report the exacerbation rate separately by sex.
If you have mild asthma and rely on a reliever, ask whether a combined steroid-formoterol reliever is right for you. Even your as-needed inhaler can carry an anti-inflammatory, not just an opener.
The study · 1
O'Byrne et al., inhaled combined budesonide-formoterol as needed in mild asthma (SYGMA 1) · N Engl J Med 2018;378(20):1865-1876
An as-needed steroid reliever cut everyday attacks about in half in real-world use
In a study designed to look like ordinary life, adults using a combined steroid-and-opener inhaler only when needed had about half the attacks of those using a plain blue reliever the same way. It backs up the tighter lab trials with real-world behavior.
The open-label Novel START trial randomized 668 adults with mild asthma to as-needed albuterol (a blue reliever), daily maintenance budesonide plus albuterol, or as-needed budesonide-formoterol, with inhaler use electronically monitored to mirror real practice. The annual exacerbation rate was 0.195 with budesonide-formoterol versus 0.400 with albuterol alone (relative rate 0.49, 95% CI 0.33 to 0.72), and severe exacerbations numbered 9 versus 23 (relative risk 0.40). Measured in: 668 adults with mild asthma in a 52-week open-label randomized controlled trial reflecting everyday practice. Being open-label, people knew which inhaler they had, which can shape behavior, though the electronic monitoring limited guessing about adherence. It confirms in a real-world design what the blinded trials showed, in adults with mild asthma, not more severe disease.
Who this may not transfer to:Both sexes were enrolled; the trial does not report the exacerbation rate separately by sex.
The everyday takeaway matches the blinded trials: an as-needed inhaler that carries a steroid protects better than a blue reliever alone. Discuss the switch with your prescriber, not changing inhalers on your own.
The study · 1
Beasley et al., controlled trial of budesonide-formoterol as needed for mild asthma (Novel START) · N Engl J Med 2019;380(21):2020-2030
In severe eosinophilic asthma, a biologic cut attacks by about half (47 to 53%)
For people whose severe asthma keeps flaring despite high-dose inhaler treatment, and who have a high level of a specific inflammatory cell, an injected biologic roughly halved their attacks. It is for that specific severe group, added on top of inhaled steroids.
In the MENSA trial, 576 people with severe asthma, recurrent exacerbations and eosinophilic inflammation despite high-dose inhaled steroids were randomized to mepolizumab (an anti-interleukin-5 antibody) or placebo every four weeks for 32 weeks. Exacerbations fell by 47% with intravenous and 53% with subcutaneous mepolizumab versus placebo, with a further drop in exacerbations needing emergency or hospital care, and improved quality-of-life and control scores. Measured in: 576 people with severe eosinophilic asthma and recurrent exacerbations despite high-dose inhaled steroids, in a randomized double-blind trial. This is for a specific severe, eosinophilic subgroup identified by blood tests, not for asthma in general, and the lung-function gain was modest (about 100 mL of FEV1). Biologics are specialist, injected treatments layered on top of inhaled steroids, not a replacement for them.
Who this may not transfer to:Both sexes were enrolled; the trial does not report the exacerbation reduction separately by sex.
If your asthma stays severe despite correctly used high-dose inhalers, ask a specialist about testing your eosinophil count and whether a biologic fits. It is added to, not swapped for, your inhaled steroids.
The study · 1
Ortega et al., mepolizumab treatment in patients with severe eosinophilic asthma (MENSA) · N Engl J Med 2014;371(13):1198-1207
Breathing retraining improved quality of life by 0.42 on the AQLQ but not lung function
Breathing retraining made people's asthma feel better and improved their quality of life, but it did not change lung function or the inflammation in the airways. It helps how you cope with asthma; it does not treat the disease, so it goes alongside a controller inhaler.
A Cochrane review of 22 trials (2,880 participants) found breathing exercises improved asthma quality of life on the AQLQ at three months (mean difference 0.42, 95% CI 0.17 to 0.68; moderate-certainty evidence) and eased hyperventilation symptoms, with inconclusive effects on lung function. The large BREATHE randomized trial (655 adults) confirmed a quality-of-life gain over usual care (adjusted mean difference 0.28) with no significant change in FEV1 or exhaled nitric oxide. Measured in: Adults with mild to moderate asthma; 2,880 across 22 trials in the Cochrane review, and 655 with incompletely controlled asthma in the BREATHE trial. The benefit is on how the asthma feels and on breathing-pattern symptoms, not on lung function or airway inflammation, which did not change. That is exactly why it belongs alongside a controller inhaler and cannot replace one: it does not treat the underlying disease.
Who this may not transfer to:Both sexes were enrolled across the pooled trials and the BREATHE trial; effects are not reported separately by sex.
Breathing retraining is worth trying for symptoms and quality of life, ideally taught by a physiotherapist or from a validated program, while keeping your controller inhaler going. Do not use it as a reason to reduce medication.
The studies · 2
Santino et al., breathing exercises for adults with asthma · Cochrane Database Syst Rev 2020;3(3):CD001277
Bruton et al., physiotherapy breathing retraining for asthma (BREATHE), a randomised controlled trial · Lancet Respir Med 2018;6(1):19-28
Losing 5 to 10% of body weight improved asthma control in 58% and quality of life in 83%
In overweight and obese adults with asthma, losing 5 to 10% of body weight improved asthma control in most people and quality of life in the large majority. It works on the weight-linked part of asthma and is a lever worth using if you are carrying extra weight.
A randomized trial in 46 overweight and obese adults with asthma compared 10 weeks of dietary restriction, exercise, or both. Weight loss averaged 8.5% with diet and 8.3% with the combined program. A loss of 5 to 10% of body weight produced a clinically important improvement in asthma control in 58% of participants and in quality of life in 83%, and the diet and combined arms improved asthma control scores significantly. Measured in: 46 overweight and obese adults with asthma (54% female, mean BMI 33.7) in a randomized trial of diet, exercise or both. The trial was small and short, and the benefit applies to overweight and obese asthmatics, not to people of healthy weight. Weight loss works on the weight-linked component of asthma; it complements inhaler treatment, not replacing it.
Who this may not transfer to:Both sexes were enrolled (54% female); some inflammatory findings differed by sex, but the asthma-control benefit of weight loss was seen across the group.
If you are overweight and have asthma, a 5 to 10% weight loss is a worthwhile target that can meaningfully improve control, alongside your usual inhalers, not instead of them.
The study · 1
Scott et al., dietary restriction and exercise improve airway inflammation and clinical outcomes in overweight and obese asthma, a randomized trial · Clin Exp Allergy 2013;43(1):36-49
Allergen immunotherapy eased allergic-asthma symptoms and cut medication, with about a one-in-nine reaction risk
For asthma driven by a confirmed allergy, immunotherapy given over years lowered symptoms and the medication people needed. It is aimed at the allergy itself, but injections carry a small risk of a serious allergic reaction, so they are done where that can be treated.
A Cochrane review of 88 trials of allergen-specific injection immunotherapy for asthma found a significant reduction in asthma symptoms (standardized mean difference -0.59, 95% CI -0.83 to -0.35) and in medication use, and improved bronchial hyper-reactivity. Roughly three people needed treatment to prevent one deterioration in symptoms. Around one in nine developed a systemic allergic reaction of some severity, so it carries a risk of anaphylaxis. Measured in: Adults and children with allergic asthma across 88 randomized controlled trials of allergen-specific immunotherapy. This treats asthma driven by a confirmed allergen and is a multi-year commitment, and injection immunotherapy carries a small risk of a severe allergic reaction, so it is given where staff can treat one. It reduced symptoms and medication without a consistent effect on lung function.
Who this may not transfer to:Both sexes and both children and adults were included across the pooled trials; effects are not reported separately by sex.
Immunotherapy is worth discussing when a specific allergy clearly drives your asthma and symptoms persist despite good inhaler treatment. It needs allergy testing first and a clinic set up to handle a reaction.
The study · 1
Abramson et al., injection allergen immunotherapy for asthma · Cochrane Database Syst Rev 2010;(8):CD001186
Rokers met astma hadden geen baat bij steroïdetabletten die de FEV1 van niet-rokers met 237 mL verhoogden
Mensen met astma die rookten hadden geen baat bij een kuur steroïdetabletten van twee weken, terwijl niet-rokers duidelijk verbeterden. Voormalige rokers reageerden gedeeltelijk, wat suggereert dat stoppen een deel van de respons terugbrengt. Roken ondermijnt juist de behandeling die astma onder controle houdt.
Een gerandomiseerde placebogecontroleerde crossoverstudie gaf twee weken oraal prednisolon aan rokers, voormalige rokers en nooit-rokers met astma. Nooit-rokers verbeterden significant op prednisolon (FEV1 steeg met gemiddeld 237 mL, ochtendpiekstroom met 36.8 L/min, en astmacontrolescores verbeterden), terwijl actieve rokers geen significante verandering toonden op enige maat. Voormalige rokers vielen er tussenin en verbeterden op piekstroom maar niet op FEV1 of controle. Measured in: Adults with chronic stable asthma, grouped as smokers, ex-smokers and never-smokers, in a randomized placebo-controlled crossover trial. Dit testte kortdurende orale steroïden, en dezelfde steroïdresistentie wordt geacht zich uit te strekken tot inhalatiesteroïden bij rokers, hoewel dit onderzoek dat niet mat. Roken ondermijnt de behandeling die astma controleert, en stoppen herstelt een deel van de respons, zoals de resultaten bij voormalige rokers suggereren.
Who this may not transfer to:Both sexes were enrolled; the trial does not report the steroid response separately by sex.
Als u astma heeft en rookt, is stoppen een van de meest waardevolle dingen die u kunt doen, omdat het herstelt hoe goed uw steroïdinhalator en -tabletten werken. Ondersteuning om te stoppen is de moeite waard om specifiek op deze gronden te vragen.
The study · 1
Chaudhuri et al., cigarette smoking impairs the therapeutic response to oral corticosteroids in chronic asthma · Am J Respir Crit Care Med 2003;168(11):1308-1311
Vitamine D verminderde astma-aanvallen in het algemeen niet, waarbij elk voordeel beperkt was tot ernstig tekort
Een vroege samenvoegingsanalyse van onderzoeken suggereerde dat vitamine D astma-aanvallen verminderde, vooral bij mensen die ernstig tekort hadden. Maar het toevoegen van nieuwere onderzoeken in een review van 2023 hief het gemiddelde voordeel op. Het is dus een gemengd beeld, waarbij elk werkelijk effect waarschijnlijk beperkt is tot mensen die starten met een ernstig laag vitamine D.
Een eerdere meta-analyse van individuele deelnemersgegevens (955 mensen, zeven onderzoeken) vond dat vitamine D de incidentie van exacerbaties die systemische steroïden nodig hadden verminderde (gecorrigeerde incidentieratio 0.74, 95%-BI 0.56 tot 0.97), met het duidelijkste voordeel bij mensen met een zeer laag uitgangs-vitamine D. Een bijgewerkte Cochrane-review van 2023 van 20 onderzoeken (2,225 deelnemers), inclusief nieuwere studies, vond geen algehele vermindering van het aandeel dat een exacerbatie had (oddsratio 1.04, 95%-BI 0.81 tot 1.34). Ernstig vitamine D-tekort was zeldzaam in deze onderzoeken. Measured in: Children and adults with mostly mild to moderate asthma across up to 20 randomized placebo-controlled trials. Het beeld is gemengd: het vroege signaal verscheen, maar het toevoegen van latere onderzoeken hief het gemiddelde voordeel op, en elk effect lijkt beperkt tot mensen die starten met een ernstig tekort, niet de algemene astmapopulatie. Het corrigeren van een werkelijk tekort is op zichzelf redelijk; vitamine D is geen betrouwbare manier om aanvallen te voorkomen bij mensen die al voldoende hebben.
Who this may not transfer to:Both sexes and both children and adults were included; the pooled analyzes do not show a consistent difference by sex.
Als een bloedtest aantoont dat u duidelijk tekort heeft, is het corrigeren ervan op zichzelf de moeite waard. Vertrouw niet op vitamine D als astmabehandeling of als reden om uw inhalatoren te minderen.
The studies · 2
Jolliffe et al., vitamin D supplementation to prevent asthma exacerbations, a systematic review and meta-analysis of individual participant data · Lancet Respir Med 2017;5(11):881-890
Williamson et al., vitamin D for the management of asthma · Cochrane Database Syst Rev 2023;2(2):CD011511
Acupunctuur verbeterde de longfunctie bij astma niet tegenover schijnbehandeling
In kleine onderzoeken verbeterde acupunctuur de longfunctie bij astma niet vergeleken met een nepnaaldprocedure. De studies waren zwak, dus het is geen vast oordeel, maar er is geen goed bewijs dat het de ademhalingsmaten verbetert, en het vervangt geen controlerende inhalator.
Een Cochrane-review van 11 onderzoeken (324 deelnemers) van acupunctuur bij astma vond geen statistisch significant of klinisch relevant effect vergeleken met schijn-acupunctuur. Samengevoegde longfunctiegegevens van twee onderzoeken gaven een gestandaardiseerd gemiddeld verschil van 0.12 (95%-BI -0.31 tot 0.55) voor post-behandelings-FEV1. De kwaliteit van de onderzoeken was laag en de soorten acupunctuur en uitkomsten varieerden sterk. Measured in: 324 people with asthma across 11 randomized or possibly randomized trials of acupuncture. De onderzoeken waren klein en slecht gerapporteerd, dus dit is een zwakke bewijsbasis, geen vast oordeel, en sommige studies gebruikten punten in de schijnarm die de traditionele Chinese geneeskunde ook gebruikt voor astma, waardoor de vergelijking vertroebeld werd. Op basis van wat er bestaat, is niet aangetoond dat acupunctuur de longfunctie verbetert, dus het vervangt geen controllerbehandeling.
Who this may not transfer to:Both sexes were included across the small trials; effects are not reported separately by sex.
Als u acupunctuur nuttig vindt voor uw welzijn, is er geen reden het te vermijden, maar gebruik het niet in plaats van uw astma-inhalatoren of verwacht niet dat het uw longfunctie verbetert.
The study · 1
McCarney et al., acupuncture for chronic asthma · Cochrane Database Syst Rev 2004;(1):CD000008
Cardiorespiratory Fitness
Regular exercise raised fitness by 4.92 mL/kg/min without worsening asthma
Regular exercise made people with asthma noticeably fitter and did not make their asthma worse. It improves fitness and how you feel, not the asthma itself, so the message is to stay active once your asthma is controlled, not to avoid exercise.
A Cochrane review of 21 trials (772 people aged 8 and over) found physical training raised maximum oxygen uptake by 4.92 mL/kg/min (95% CI 3.98 to 5.87), a clinically meaningful fitness gain, with signals of better quality of life. Training was well tolerated, no study reported worsening of asthma, and lung-function measures such as FEV1 did not change. Measured in: 772 people aged 8 and over with asthma across 21 randomized trials of physical training. Exercise improves fitness and wellbeing, not the asthma itself, and it should be undertaken on a controlled baseline, since exercise can trigger symptoms in poorly managed asthma. The trials studied people whose asthma was stable enough to train.
Who this may not transfer to:Both sexes were enrolled across the pooled trials; effects are not reported separately by sex.
If your asthma is controlled, build regular activity in, and use a reliever or pre-exercise dose beforehand if exercise brings on symptoms. If exercise reliably triggers bad symptoms, that is a sign the underlying asthma needs better control first.
The study · 1
Carson et al., physical training for asthma · Cochrane Database Syst Rev 2013;(9):CD001116
Where the evidence does not hold up
Vitamin D looked promising in an early pooling of trials, especially for people who were very deficient. Adding newer studies in a 2023 Cochrane review washed out the average benefit. The picture is mixed, so it is not a reliable way to prevent attacks in someone whose vitamin D is already normal. Correcting a confirmed deficiency is reasonable on its own terms.
Acupuncture, across 11 small trials, did not improve lung function compared with a sham needle procedure. The trials were weak, so the evidence is only suggestive. If you find it steadies you, there is no reason to avoid it.
Getting Asthma Under Control
This is how to get the most from the plan your prescriber has you on. Take the controller every day, treat a fast-emptying reliever as a signal to get reviewed, and reduce the things that set the airways off.
The controller calms the inflammation over days and weeks, so it only works if taken daily, including on the days you feel fine. Its job is to prevent the next flare, which is why it continues when nothing feels wrong.
Have a pharmacist or nurse watch you use the inhaler once, and add a spacer where it helps. Most of the lost dose is technique, so getting more of it to the airway makes a real difference.
A reliever canister emptying fast is a sign the asthma is not controlled. Treat it as the trigger to get your treatment reviewed, so the underlying inflammation gets addressed.
A written plan sets out your daily treatment, what to do as symptoms build, and when to seek urgent help. On paper, it gives you clear steps to follow on a bad day instead of guesswork.
Reduce the exposures that set your airways off, and keep any hay fever treated. Of everything here, stopping smoking is the single highest-value move.
Exercise builds fitness and does not worsen well-controlled asthma, and losing weight if you carry extra improves control. Both add to what your inhalers do.
Go Deeper
- Breathing retraining: the breathing technique studied in asthma, and the symptoms it helps.
- Walking and exercise: why staying active builds fitness without worsening controlled asthma, and how to start.
- Whole foods: the eating shift behind the weight loss that improves control in overweight adults.
- Pranayama: the yogic breathing exercises studied in asthma, what they ease, and what they do not change.
The Chinese Medicine View
The Chinese Medicine View
Chinese medicine reads asthma as Xiao Zheng (哮症), wheezing with an audible sound, and Chuan Zheng (喘症), labored panting breath, the two often named together as Xiao Chuan. The central idea is a hidden store of Phlegm in the Lung. A trigger (cold air, an allergen, exertion, or emotion) stirs it into an attack. During an attack the tradition treats the branch, opening the Lung and moving Phlegm. Between attacks it treats the root, strengthening the organs that let Phlegm gather. A practitioner reads an acute attack as a Cold or a Hot pattern. Recurrent asthma is traced to deficiency of the Lung, Spleen, or Kidney.
An acute attack brought on by cold: wheezing with a tight chest, thin white or foamy sputum, no thirst, worse in cold air or winter. The Phlegm is read as cold and watery. The classical direction is to warm the Lung, scatter Cold and transform Phlegm, the picture She Gan Ma Huang Tang is built for.
An acute attack running hot: loud wheezing, a full chest, thick yellow sputum that is hard to bring up, thirst, a flushed face, worse in heat. The direction is to clear Heat, transform Phlegm and calm the wheezing, the picture of a formula such as Ding Chuan Tang.
The chronic root in many people: breathlessness on exertion, a weak voice, sweating easily, catching every cold, poor appetite, loose stools and tiredness. The Spleen is seen as producing the Phlegm that the Lung then stores. The direction is to strengthen the Lung and Spleen and stop Phlegm forming.
Long-standing asthma where the breath cannot settle: shortness of breath worse on exertion and on breathing in, cold limbs, weak lower back and knees, worse in winter. The Kidney is seen as failing to grasp the Qi and hold the breath down. The direction is to warm and tonify the Kidney so it can anchor the breathing.
Cautions
Extra restraintEverything to be aware of is here, in one place. This practice suits most healthy people; a few situations call for real care.
Een korte steroïdetablettenkuur na een aanval verminderde terugval in de eerste week (relatief risico 0.38)
Een Cochrane-review van zes onderzoeken (374 mensen) vond dat een korte kuur corticosteroïden na behandeling van een acute astma-aanval de kans op terugval en behoefte aan meer zorg in de eerste week verminderde (relatief risico 0.38, 95%-BI 0.20 tot 0.74), een effect dat gedurende 21 dagen aanhield, met minder latere ziekenhuisopnames (relatief risico 0.35) en minder behoefte aan de reliever, en geen duidelijke toename van bijwerkingen. Zo weinig als tien mensen moesten worden behandeld om één terugval te voorkomen. Dit is een korte reddingskuur om te herstellen van een opflakkering, geen langdurige behandeling, omdat langdurige orale steroïden hun eigen risico's dragen. Vroeg beginnen bij een ernstige aanval is wat het bewijs ondersteunt, wat één reden is dat een ernstige aanval snelle medische beoordeling nodig heeft.Rowe et al., corticosteroids for preventing relapse following acute exacerbations of asthma
Heavy blue-reliever use tracked with up to 77% more attacks and a higher death risk
The SABINA nationwide cohort linked Swedish registries for 365,324 asthma patients aged 12 to 45 followed a mean of about seven years. Overuse of the short-acting reliever, defined as more than two canisters a year, was common (30% of patients) and rose in step with risk. Compared with two or fewer canisters a year, collecting 3 to 5 carried a 26% higher exacerbation risk, 6 to 10 a 44% higher, and 11 or more a 77% higher; for mortality the hazard ratios were 1.26, 1.67 and 2.35 respectively (2,564 deaths observed). This is an observational association, so it does not establish that the reliever itself causes the harm; the amount a person gets through is partly a marker of how bad and how poorly controlled their asthma already is. Either way, a canister running down fast is a reliable signal that the asthma needs reviewing, not more reliever.Nwaru et al., overuse of short-acting beta2-agonists in asthma is associated with increased risk of exacerbation and mortality, the global SABINA programme
Start slow, be smart, read the research, and consult a professional if you have any concerns. This is here to inform your choice, not make it for you.
When to See Someone
One rule matters most: a controller inhaler is not something to stop or cut back on your own. Stopping it lets airway inflammation return, often before symptoms do. These are the signs to act on, and the first is an emergency:
- A severe attack: too breathless to speak a full sentence, walk, or lie flat; the reliever not working or wearing off within an hour; lips or fingertips turning blue or gray; exhaustion or drowsiness; or a chest that has gone quiet with no wheeze left. Call emergency services and keep taking the reliever while you wait(seek urgent care)
- Needing the reliever more than about twice a week, or waking at night with asthma. Either means it is not controlled, so get the treatment reviewed
- A peak flow reading that is dropping, or falling well below your personal best, especially alongside more symptoms, which can warn of a flare building before you feel it
- Symptoms getting steadily worse over several days despite normal inhaler use. Get seen
- A new or worsening wheeze, cough, or breathlessness in someone with hay fever or eczema: get the chest assessed
- First-ever wheeze and breathlessness in an adult. Or breathlessness with chest pain, a racing heartbeat, or swollen legs, these can be something other than asthma and need diagnosis(seek urgent care)
Use these signs to tell an ordinary symptom day from an attack, and keep the controller going in between.
Common Questions
Do I really need the controller inhaler if I feel fine?
Yes. The controller settles airway inflammation slowly, so its protection builds over daily use and fades once you stop. Quit because symptoms went quiet and the inflammation returns, often before you feel it again.
What is the difference between the blue and the brown inhaler?
They do different jobs. The blue reliever widens the airway for a few hours to ease a flare, and leaves the inflammation behind. The brown or colored controller settles that inflammation over time, so it is the one that changes how the illness behaves. The newer twist is that an as-needed inhaler can itself carry a low-dose steroid.
Is it safe to exercise with asthma?
Once the asthma is controlled, exercise is good for it. If exercise reliably brings on a wheeze, warm up first and use a reliever or pre-exercise dose as your clinician advises. Treat that wheeze as a signal the asthma itself needs firmer control, and keep moving.
Do natural remedies work for asthma?
Some ease how asthma feels without changing what is happening in the airway. Breathing retraining is the clearest example of that split. Weigh each one by the graded findings and by whether it steadies you.
Explore Related
Other pages this one connects to, by the evidence they share, the outcomes they touch, and the ground they cover.
All 15 sources on this page independently checked and cross-referenced.
Thomas Dehli, Founder & Editor, Sacred Lotus
Sacred Lotus has published Chinese medicine reference material since 2001. Integrative pages are held to the same standard as the herb and formula library: cite the source, grade the claim at its real strength, and say where the research has not looked. This page is educational and it is not medical advice. Last reviewed and updated August 9, 2026.
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