Long covid is een reële aandoening die bij een minderheid van mensen na een infectie blijft aanhouden. Ze neemt verschillende vormen aan: vermoeidheid na inspanning, kortademigheid, hersenmist, een versnelde hartslag bij het opstaan en verlies van reukvermogen. Het allerbelangrijkste is om de juiste hoeveelheid activiteit te vinden, je activiteitsniveau.
Waar inspanning betrouwbaar tot een vertraagde terugval leidt, is de veilige aanpak om binnen je energiegrens te doseren, en het overschrijden van die grens werkt averechts. Preventie heeft het sterkste bewijs, via vaccinatie vóór infectie en, in één onderzoek, metformine dat vroeg tijdens de acute ziekte werd gestart. Voor symptomen die al aanwezig zijn, helpen ademhalingstraining, reuktraining en begeleide revalidatie bij specifieke problemen, en enkele alarmsymptomen vereisen een arts.
Practice Ranking
Every practice we track for Long COVID, ranked by how well the evidence supports it for this condition. Strength describes the evidence, not our endorsement.
2 practices · 1 to start with
| # | Practice | Evidence | Type | Cost | Effort | Results In | Add to plan |
|---|---|---|---|---|---|---|---|
| 1 | Pacing: How Staying Within Your Energy Envelope Prevents Crashes in ME/CFS and Long COVID Where post-exertional malaise is present, pacing prevents crashes; do not push through. | Emerging | Self-Directed | – | – | – | |
| 2 | Breathwork and HRV: The Research, the Practice, and How to Start A structured breathing program eased breathlessness on exertion after COVID; it is gentle and does not provoke post-exertional crashes. | Emerging | Self-Directed | Free | Easy | Days to Weeks | |
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
Long COVID is the collection of symptoms that persist for months after a SARS-CoV-2 infection. It is a recognized diagnosis, with measurable physical findings behind it. A Swiss population study followed more than 1,700 adults. People who had caught COVID had clearly more symptoms than people who were never infected. The biggest differences between the two groups were in altered taste or smell, post-exertional malaise, breathlessness, reduced concentration and fatigue.
Most people improve over the next one to two years. Long COVID is also becoming less common, as more people are vaccinated and later variants are milder. In that Swiss cohort the share of infected people who had not fully recovered dropped from 22.9% at six months to 17.2% at two years. A minority stay unwell for longer.
The Main Patterns
Six patterns cover most of long COVID, and the right response differs sharply between them.
Fatigue with post-exertional malaise is the most disabling pattern: a delayed, disproportionate crash a day or two after physical or mental effort, different from ordinary tiredness. Muscle biopsy work found physical abnormalities in this group that worsen after the very exercise that triggers a crash. Those biopsy changes are the opposite of what deconditioning produces.
Where this pattern is present, keep within your energy envelope. A push- through exercise plan can cause a lasting setback, because the exertion drives the tissue damage.
Breathlessness and dysfunctional breathing is persistent shortness of breath, often with a fast or shallow breathing pattern that outlasts any lung damage. Once the heart and lungs have been checked, it responds to retraining the breath.
Brain fog and cognitive symptoms cover trouble with memory, concentration and word-finding. On formal testing this shows as a measurable deficit, small on average for people who have recovered and larger in those whose symptoms have not resolved.
Dysautonomia and orthostatic intolerance means a racing heart, lightheadedness or fatigue on standing, sometimes diagnosed as postural tachycardia syndrome. The automatic nervous system fails to regulate blood pressure and heart rate on standing, and this warrants clinical assessment.
Loss of smell and taste is smell that is absent, reduced or distorted after the infection. It recovers for many people over months.
After severe or hospitalized COVID, people can carry lasting effects across the lungs, heart, muscles and mind at once, alongside the deconditioning of a long admission. Recovery here is slower and needs coordinated support.
What Helps
A systematic review pooled 16 observational studies covering more than 600,000 patients. Vaccinated people had a lower chance of developing long COVID, and the effect pointed the same way in 10 of 12 studies. Vaccinated people also differ in health, income and healthcare access. This is the healthy-vaccinee pattern: healthier people are more likely to get vaccinated, so some of the gap comes from who they are. The finding is real and consistent, but it is weaker than the trial evidence, because these observational studies did not randomize who got vaccinated.
Metformin points the same way from a randomized trial. In COVID-OUT, metformin started within days of infection in adults with overweight or obesity cut later long COVID diagnoses from 10.4% to 6.3%. The drug is cheap and widely available. Both metformin and vaccination work during the acute infection, so they are a prescriber's decision in that short window. Neither treats long COVID once it is established.
For symptoms already present, match the treatment to the pattern. Pacing reduces how often and how hard the crashes hit where the crash-after-effort pattern is present. Breathing retraining eased breathlessness on exertion in a randomized trial. Olfactory training, a structured daily sniffing routine, targets smell loss after a viral infection. For lasting symptoms after a hospital admission, a supervised, tailored rehabilitation program with psychological support improved quality of life, fatigue and mood, with gains holding at 12 months.
What Is Promoted But Unconfirmed
Paxlovid is one of the more heavily promoted ideas, and a longer course did not hold up. In the STOP-PASC randomized trial, a 15-day course of the antiviral did not improve established long COVID symptoms in people ill for well over a year. That result is about treating long-standing disease. It says nothing about antivirals given during the acute infection.
Other approaches for long COVID have not been tested to that standard:
- private treatment courses,
- unvalidated diagnostic tests,
- supplement protocols promoted as cures.
Being told the symptoms are just anxiety, or just being out of shape, is also wrong. The muscle, cognitive and cardiovascular findings show a real physical process. The same goes for a one-size-fits-all graded-exercise plan, which can set back the people who have post-exertional malaise.
Managing The Specific Problem
Care works best when it is built around the pattern you actually have.
Where effort brings on a delayed crash, pace within your energy envelope. If activity reliably triggers a setback a day or two later, stabilize first and build very gradually under the guidance of someone familiar with the condition.
Where the crash pattern is absent, a gradual, monitored return to gentle activity is reasonable and can rebuild capacity. This is an individual decision, and the plan should stop before it triggers a setback.
For breathlessness, retraining the breath is a low-cost, low-risk first step once heart and lung causes are ruled out.
For lost or distorted smell, start olfactory training at home. Smell four distinct scents such as rose, lemon, clove and eucalyptus for about 20 seconds each, twice daily, over several months.
Where standing brings on symptoms, ask for assessment for postural tachycardia syndrome. Fluids and salt where appropriate, graded position changes and compression can help alongside a clinical review.
For disturbed sleep and low mood, treat them directly. Unrefreshing sleep worsens fatigue, mood and thinking. Both are treatable in their own right, and treating them supports the rest of recovery.
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 Infection
Long COVID is a real condition, and 17.2% were still not fully recovered two years after infection
Long COVID is a measurable condition, not something imagined. Compared with people who were never infected, those who caught COVID reported clearly more fatigue, breathlessness, brain fog and loss of smell. Most improve over the following two years, but close to one in six were still not fully recovered at two years.
Ballouz 2023 (BMJ) followed 1,106 adults in canton Zurich with a confirmed SARS-CoV-2 infection before they were vaccinated, alongside 628 uninfected adults, from six to 24 months after infection. The proportion reporting incomplete recovery fell from 22.9% at six months to 18.5% at 12 months and 17.2% at 24 months. Most participants continued to recover (68.4%) or improved overall (13.5%), while 5.2% worsened, 4.4% had stable (unchanged) health impairment, and 8.5% had alternating periods of recovery and impairment. Adjusted excess risk versus the uninfected at six months was 17.0% overall, with the highest excesses for altered taste or smell, post-exertional malaise, reduced concentration, dyspnea and fatigue.
Expect gradual improvement for most people over months to a couple of years, and take the persistence of symptoms in a minority seriously, not dismissing it. The trajectory varies, so tracking your own symptoms over time is more useful than a single snapshot.
The study · 1
Ballouz 2023, BMJ · BMJ
Metformin early in acute COVID cut long COVID diagnoses from 10.4% to 6.3%
In people treated soon after catching COVID, the cheap, widely available diabetes drug metformin cut the chance of later being diagnosed with long COVID by about four in every hundred people treated. It is the clearest positive result so far for preventing long COVID with a medication, and it worked best when started in the first few days.
Bramante 2023 (Lancet Infectious Diseases) reports a prespecified secondary outcome of COVID-OUT, a randomized, quadruple-blind, phase 3 trial in adults aged 30 to 85 with overweight or obesity and COVID-19 symptoms for under seven days. Of 1,126 participants followed (564 metformin, 562 placebo; 56% female), the cumulative incidence of a provider-diagnosed long COVID by day 300 was 6.3% with metformin versus 10.4% with placebo (HR 0.59, 95% CI 0.39 to 0.89; P=0.012), an absolute reduction of 4.1%. When metformin was begun within three days of symptom onset the HR was 0.37 (95% CI 0.15 to 0.95). Ivermectin (HR 0.99) and fluvoxamine (HR 1.36) did not reduce incidence.
This is a prevention finding for the acute infection window, not a treatment for established long COVID, and any use of metformin during COVID is a decision for a prescriber. It does not mean supplements marketed for the same purpose work.
The study · 1
Bramante 2023, Lancet Infect Dis (COVID-OUT) · Lancet Infect Dis
Supervised, tailored rehabilitation improved quality of life and fatigue, holding at 12 months
For people who had been hospitalized with COVID and were left with lasting symptoms, an eight-week online program combining supervised group exercise and psychological support improved quality of life, fatigue and mood more than usual care, and the gains held at a year. It shows structured, guided rehabilitation can help, when it is matched to the person.
McGregor 2024 (BMJ) randomized 585 adults (mean age 56, 52% female) discharged from UK hospitals at least three months earlier with ongoing physical or mental-health sequelae to the REGAIN intervention (weekly home-based, live, supervised group exercise plus psychological support over eight weeks) or best-practice usual care (a single advice session). At three months the intervention improved health-related quality of life (adjusted PROMIS-PROPr difference 0.03, 95% CI 0.01 to 0.05; P=0.02), driven by depression (1.39), fatigue (2.50) and pain-interference (1.80) subscores, with benefit maintained to 12 months. Of 21 serious adverse events, one was possibly related to the intervention.
Structured rehabilitation helps when it is supervised and tailored, including a psychological-support element, not a generic exercise handout. Where the post-exertional crash pattern is present, the program has to be built around pacing.
The study · 1
A 15-day Paxlovid course did not improve established long COVID symptoms
A 15-day course of the COVID antiviral Paxlovid did not improve established long COVID symptoms in a randomized trial. It is a useful check on one of the more heavily promoted off-label ideas: the pill that helps the acute infection did not help people already living with the condition.
Geng 2024 (JAMA Internal Medicine) randomized 155 adults (median age 43, 59% female) with moderate-to-severe post-acute sequelae of at least three months, a mean of 17.5 months after infection, in a 2:1 ratio to 15 days of nirmatrelvir-ritonavir or placebo-ritonavir. The primary outcome, pooled severity across fatigue, brain fog, shortness of breath, body aches, gastrointestinal and cardiovascular symptoms at 10 weeks, showed no significant between-group difference, and there were no significant differences in global-impression scores or PROMIS fatigue, dyspnea, cognitive-function and physical-function measures. Adverse-event rates were similar.
This argues against paying for extended antiviral courses to treat long-standing symptoms. It does not rule out benefit from antivirals given during the acute infection, which is a separate question.
The study · 1
Geng 2024, JAMA Intern Med (STOP-PASC) · JAMA Intern Med
Smell training nearly tripled the odds of meaningful smell recovery (odds ratio 2.77)
For smell lost after a viral infection, deliberately sniffing a set of strong scents twice a day over months, called olfactory training, improved measured smell more than doing nothing. It is cheap, safe, and something a person can do at home, which makes it a sensible first step for post-COVID smell loss.
Kattar 2021 (Otolaryngology-Head and Neck Surgery) reviewed 16 studies of olfactory training for post-viral olfactory dysfunction and pooled four in meta-analysis. All studies reported clinically significant improvement on Sniffin Sticks testing (a change in TDI score above 5.5), and the pooled odds of achieving a clinically important difference were 2.77 times higher with training than with controls (95% CI 1.67 to 4.58). Protocols varied and the authors noted they may benefit from further standardization.
Olfactory training means smelling four distinct scents such as rose, lemon, clove and eucalyptus for about 20 seconds each, twice daily, for several months. It is low-cost and low-risk, so it is reasonable to start while smell is still absent.
The study · 1
Kattar 2021, Otolaryngol Head Neck Surg · Otolaryngol Head Neck Surg
Vaccination before infection was linked to less long COVID in 10 of 12 studies
Being vaccinated before catching COVID appears to lower the chance of going on to develop long COVID, with more doses linked to a bigger drop. The studies point the same way, but they are the weaker observational kind, so this points a consistent direction, not a settled number.
Byambasuren 2023 (BMJ Medicine) searched to August 2022 and found no randomized trials, so it pooled 16 observational studies of 614,392 patients across five countries. Of 12 studies reporting vaccination before infection, 10 found a significant reduction in long COVID incidence, with odds ratios of 0.22 to 1.03 for one dose, 0.25 to 1 for two doses, and 0.16 for three doses. Five studies of vaccination after infection reported odds ratios of 0.38 to 0.91. High heterogeneity prevented a meta-analysis, and the authors rated the certainty of evidence low because the studies did not adjust for confounders such as other protective behaviors.
Vaccination is the best-supported single step for lowering long COVID risk, and it works before infection, so keeping up to date matters most before you are exposed, not after symptoms start.
The study · 1
Byambasuren 2023, BMJ Med · BMJ Med
A six-week breathing program eased breathlessness on exertion after COVID
For people left short of breath after COVID, a six-week online breathing program built around singing techniques eased breathlessness during activity and lifted the mental-wellbeing side of quality of life. It did not change the physical-function score, so it is a helpful support for symptoms, not a cure.
Philip 2022 (Lancet Respiratory Medicine) randomized 150 adults with ongoing breathlessness at least four weeks after COVID-19 to the English National Opera Breathe program, a six-week online course focused on breathing retraining through singing, or to usual care. Compared with usual care, the intervention improved the RAND-36 mental-health composite (coefficient 2.42, 95% CI 0.03 to 4.80; P=0.047) and the running breathlessness visual analogue scale (-10.48, 95% CI -17.23 to -3.73; P=0.0026), but not the physical-health composite (0.60; P=0.54) or most other secondary measures. One minor self-limiting adverse event was reported.
Breathing retraining is a low-risk, low-cost option worth trying for breathlessness and dysfunctional breathing, alongside, not instead of, a medical check that the breathlessness is not from an untreated heart or lung problem.
The study · 1
Philip 2022, Lancet Respir Med (ENO Breathe) · Lancet Respir Med
Cognition
Brain fog is measurable, a 0.42 SD cognitive deficit where symptoms persist
Brain fog is measurable, not just a feeling. On cognitive testing, people who had recovered from COVID scored slightly lower than those never infected, and people still living with symptoms scored lower again. The gaps are small on average but consistent, and they were larger for people infected earlier in the pandemic.
Hampshire 2024 (New England Journal of Medicine) invited 800,000 adults in the REACT study in England to an online assessment; 112,964 completed a battery of eight tasks yielding a global cognitive score. Adjusted for confounders, participants whose symptoms resolved in under four weeks or by at least 12 weeks had global deficits of -0.23 SD (95% CI -0.33 to -0.13) and -0.24 SD (95% CI -0.36 to -0.12) versus the no-COVID group, while those with unresolved persistent symptoms had a -0.42 SD deficit (95% CI -0.53 to -0.31). Deficits were larger for the original and B.1.1.7 variants than for later Omicron-era infections.
Take cognitive symptoms seriously and mention them to a clinician; for most recovered people the measured effect is small, and earlier-variant infections drove the larger numbers.
The study · 1
Hampshire 2024, N Engl J Med · N Engl J Med
Neuropsychological tests showed a medium-to-large cognitive deficit (Hedges g -0.68)
Pooling the early studies that used formal neuropsychological tests, people with lingering COVID symptoms performed clearly worse than healthy volunteers. The result lines up with the larger community data, though these were small, varied studies.
Sobrino-Relano 2023 (Scientific Reports) systematically reviewed 25 studies and meta-analyzed six that compared objective neuropsychological performance, totalling 175 people who had recovered from COVID and 275 healthy controls. A random-effects model gave an overall effect of Hedges g -0.68 (95% CI -1.05 to -0.31; Z=3.58, P<0.001), indicating a medium-to-large deficit, with moderate heterogeneity (I2 63%).
Objective testing can confirm and characterize cognitive difficulties when they are affecting work or daily life, which is more useful than reassurance alone for someone who senses their thinking has changed.
The study · 1
Sobrino-Relano 2023, Sci Rep · Sci Rep
Heart And Vascular
Heart, stroke and clot risk stayed raised for months after COVID, even without hospitalization
In the months after COVID, the risk of heart problems, stroke and blood clots is higher than in people who were not infected, and it is raised even for those who were never hospitalized. This is why new chest pain, severe breathlessness, or signs of a clot after COVID are worth getting checked promptly.
Xie 2022 (Nature Medicine) used US Department of Veterans Affairs data to compare 153,760 people with COVID-19 against contemporary (5,637,647) and historical (5,859,411) control cohorts, estimating risks and one-year burdens of prespecified incident cardiovascular outcomes beyond 30 days. Risks were increased across cerebrovascular disorders, dysrhythmias, ischemic and non-ischemic heart disease, pericarditis, myocarditis, heart failure and thromboembolic disease, were evident among non-hospitalized individuals, and increased in a graded fashion with the care setting of the acute infection.
Who this may not transfer to:The Veterans Affairs population is overwhelmingly male and older, so the exact risk magnitudes may differ for women and younger adults; other cohorts that included more women have reported raised post-COVID cardiovascular risk in the same direction.
After COVID, treat new or worsening chest pain, severe or sudden breathlessness, fainting, or signs of a clot such as a swollen painful calf or coughing blood as reasons to seek care, not to wait, and keep up routine attention to blood pressure and cholesterol.
The study · 1
Xie 2022, Nat Med · Nat Med
Anxiety And Stress
New anxiety, mood or neurological diagnoses reached 33.6% within six months of COVID
In the half-year after COVID, new anxiety, mood and, less often, neurological diagnoses were more common than after flu or other chest infections. Distress after long COVID is common and understandable, and it is a reason for support, not a sign the physical symptoms are imagined.
Taquet 2021 (Lancet Psychiatry) analyzed electronic health records of 236,379 COVID-19 survivors, comparing them with propensity-matched cohorts of influenza and other respiratory-tract-infection patients. The six-month incidence of any of 14 neurological or psychiatric outcomes was 33.6% (12.8% first diagnoses); incidence rose to 46.4% after intensive-care admission. Versus influenza, hazard ratios were 1.44 for any diagnosis and 1.78 for a first diagnosis; versus other respiratory infections, 1.16 and 1.32. Ischemic stroke incidence was 2.10% across the whole cohort and higher after severe illness. Results were robust across sensitivity analyzes.
Persistent low mood, anxiety, or any thoughts of self-harm after COVID deserve the same prompt support as the physical symptoms; treating the mood does not mean the rest is in the mind.
The study · 1
Taquet 2021, Lancet Psychiatry · Lancet Psychiatry
Energy And Fatigue
Pacing reduced the frequency and intensity of post-exertional crashes
For the people whose symptoms flare a day or two after too much activity, the central approach is pacing: staying within an energy limit so you do not trigger a crash. Where this pattern is present, pacing reduced how often and how hard the crashes hit. People who do not have this crash pattern were generally able to build activity gradually under supervision without setbacks.
Pouliopoulou 2025 (Archives of Physical Medicine and Rehabilitation) pooled observational and interventional studies to February 2025. The prevalence of post-exertional malaise in community-dwelling adults with post-COVID condition was 25% (95% CI 0.17 to 0.36; 10 studies, 4,076 participants; low certainty). Five interventional studies (193 patients) found a decrease in the frequency and intensity of post-exertional malaise after individually tailored rehabilitation centred on pacing. Among studies whose participants did not have prominent post-exertional malaise, seven of eight with a therapeutic-exercise component reported no post-exertional symptom exacerbation from the exercise. All studies carried a high to very high risk of bias.
The dividing line is whether effort reliably brings on a delayed crash. If it does, work within your energy envelope and progress by stabilizing first, not by pushing through. If it does not, a gradual, supervised increase in activity is reasonable. Either way, the plan is individual, not the same for everyone.
The study · 1
Pouliopoulou 2025, Arch Phys Med Rehabil · Arch Phys Med Rehabil
Muscle biopsies found physical abnormalities that worsen after post-exertional malaise
When researchers looked inside the muscles of people with long COVID before and after exercise, they found physical changes that got worse after the activity that triggered a crash. This is evidence that post-exertional malaise is a bodily process, not a matter of being out of shape or anxious.
Appelman 2024 (Nature Communications) was a longitudinal case-control study (NCT05225688) comparing people with long COVID and matched healthy controls, with muscle biopsies and blood taken before and after a maximal exercise test designed to provoke post-exertional malaise. Compared with controls, patients had skeletal-muscle structural changes associated with lower exercise capacity, and after exercise they showed local and systemic metabolic disturbances, severe exercise-induced myopathy, and tissue infiltration of amyloid-containing deposits, several of which worsened following the induction of post-exertional malaise.
This helps explain why pushing through effort can set some people back, not build them up, and it supports approaching activity cautiously where the crash pattern is present.
The study · 1
Appelman 2024, Nat Commun · Nat Commun
The Chinese Medicine View
Chinese medicine has a long tradition of treating the aftermath of a serious febrile illness. The Warm disease (Wen Bing) school called it a lingering pathogen that depletes the body after the acute fever passes. Chinese medicine reads long COVID as an aftermath state and sorts it into the patterns below. These patterns are supportive care alongside medical assessment. A practitioner takes the pulse and reads the tongue that name them. Chinese medicine also cautions against overtreating a depleted person. Strong, draining or over-stimulating approaches can deepen exhaustion. Where effort brings on a crash, the same restraint applies here that Western guidance calls pacing.
Exhaustion, breathlessness on exertion, a dry mouth, night sweats and a thin rapid pulse, read as the fever depleting both Qi and Yin (fluids). The direction is to gently tonify Qi and nourish Yin.
Weak breath, a soft cough, poor appetite, loose stools and heavy fatigue after eating, read as the Lung and Spleen left weak after the illness. The direction is to strengthen both and rebuild the source of Qi slowly.
A deeper, constitutional exhaustion with lower back and knee weakness, poor stamina and low drive, read as the deepest reserve being drawn down by a long illness. The direction is to support the Kidney and restore over time.
Low-grade heat, a heavy foggy head, a thick tongue coat and symptoms that flare and settle, read as a residual pathogen that has not fully cleared. The direction is to clear what remains while protecting the depleted body underneath.
Fixed aches, chest tightness, palpitations and a dusky tongue, read as circulation that has become stagnant after the illness. The direction is to move Blood gently.
Cautions For This Practice
Extra restraintEverything to be aware of is here, in one place. This practice suits most healthy people; a few situations call for real care.
Pushing through effort risks lasting setbacks, and 58.7% surveyed met the ME/CFS crash threshold
Twomey 2022 (Physical Therapy) was a cross-sectional survey of 213 adults with persistent symptoms after COVID-19, using the Functional Assessment of Chronic Illness Therapy-Fatigue Scale and the DePaul Symptom Questionnaire for post-exertional malaise. Mean fatigue score was 18 (SD 10) on a 0 to 52 scale where lower is worse, with 71.4% experiencing clinically relevant chronic fatigue and 58.7% meeting ME/CFS post-exertional malaise thresholds. The authors advised that post-exertional symptom exacerbation must be monitored and that rehabilitation should be individually designed, beginning with pacing to stabilize symptoms.Twomey 2022, Phys Ther
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
Most of long COVID is managed with time, pacing and support, and improves over months. A few situations need a professional. See a doctor, urgently where noted, if you have:
- New or worsening chest pain, severe or sudden breathlessness, or fainting. Heart-problem, stroke and clot risk is raised for months after COVID, even without hospitalization. These need prompt cardiac and clot assessment(seek urgent care)
- Signs of a blood clot such as a swollen, painful or hot calf, or coughing up blood, which need same-day assessment(seek urgent care)
- New neurological symptoms such as face drooping, weakness or numbness on one side, difficulty speaking, or a sudden severe headache, which can point to a stroke(seek urgent care)
- Severe low mood, hopelessness, or any thoughts of harming yourself. Distress after long COVID is common and treatable, and it deserves the same prompt help as the physical symptoms(seek urgent care)
- Symptoms that are severe, or getting worse over weeks, or a new symptom you cannot account for. Get these reviewed promptly
- A reliable, delayed crash a day or more after even small effort (post-exertional malaise). Stay within your limit and pace
None of this is meant to alarm you. Start slow, get the treatable causes checked, and see someone if any of the above fit.
Common Questions
What is post-exertional malaise?
In one survey of adults with long COVID, 58.7% met the same post-exertional-malaise threshold used in myalgic encephalomyelitis and chronic fatigue syndrome (ME/CFS). The delayed crash after effort is the same one those older diagnoses describe.
Will my sense of smell come back?
Olfactory training raises the odds it returns. It is cheap, safe and done at home. In a pooled analysis of post-viral smell loss, people who trained had 2.77 times the odds of a meaningful improvement over those who did not.
Explore Related
Other pages this one connects to, by the evidence they share, the outcomes they touch, and the ground they cover.
All 14 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.
Evidence strength
How confidently the research supports a claim. Strength describes the evidence, not our endorsement.