Skip to content
All conditions

Immune & Respiratory

Post-Viral Recovery (Long COVID)

Reviewed by the Nimbera editorial team · Last updated May 2026

Persistent symptoms following viral illness - most commonly COVID-19 - including fatigue, brain fog, breathlessness, post-exertional malaise, and mood disruption lasting weeks to months after the initial infection has resolved. Also known as post-acute sequelae of SARS-CoV-2 (PASC) or long COVID.

When to see a doctor

See a doctor to rule out cardiac, pulmonary, or autoimmune complications that require specific treatment. Severe breathlessness, chest pain, or neurological symptoms warrant urgent evaluation.

Natural remedies · 7

Tap any remedy for the full how-to and citation.

How we rate evidence▾

Strong - Multiple randomised controlled trials or systematic reviews with consistent positive outcomes.

Moderate - At least one RCT or several high-quality observational studies with plausible mechanisms.

Limited - Small trials, animal studies, or traditional use with limited human clinical evidence.

Sources link directly to PubMed, Cochrane Reviews, or NCCIH.

Coenzyme Q10 (CoQ10)

ingestible
A 2024 overview found mitochondrial dysfunction and reduced CoQ10 levels consistently observed in post-viral fatigue syndrome, supporting supplementation as a rational intervention (Mantle & Hargreaves, 2024).
$30-$60 per month

Vitamin D3

ingestible
An 8-week randomized placebo-controlled trial of 80 post-COVID patients found high-dose vitamin D significantly improved fatigue, anxiety, and cognitive function compared to placebo (Benskin et al. 2024).
$10-$25 per month

Omega-3 Fatty Acids (EPA/DHA)

ingestible
A 2023 retrospective cohort of 33,908 patients found omega-3 supplementation significantly reduced psychiatric sequelae including depression, anxiety, and insomnia following COVID-19 infection (Rafiee et al. 2023).
$25-$50 per month

N-Acetylcysteine (NAC)

ingestible
A 2025 study found NAC supplementation improved dyspnea and may normalize von Willebrand plasma levels in patients with Post-Acute-COVID-Sequela (PASC), pointing to antioxidant and vascular mechanisms.
$15-$30 per month

Energy Pacing (Activity Management)

lifestyle
A 2022 systematic review and meta-analysis found activity pacing interventions significantly reduced fatigue and improved physical function in ME/CFS patients, with lessons directly applicable to long COVID management.
$0 (free) or $10-$20/month with monitoring app

Magnesium Glycinate

ingestible
A 2024 analysis found that combined magnesium and vitamin D deficiencies in long COVID patients associate with a significantly higher number of clinical manifestations compared to patients with normal levels of both nutrients.
$15-$30 per month

Ashwagandha (Withania somnifera)

ingestible
A 2024 prospective randomized placebo-controlled study found ashwagandha root extract significantly improved self-reported energy, cognition, and mood in adults with fatigue and cognitive complaints over 8 weeks.
$15-$35 per month

More in Immune & Respiratory

Sinus Congestion

4 remedies

Sore Throat

5 remedies

Seasonal Allergies

7 remedies

Cold & Flu Symptom Relief

5 remedies

Remedy information is compiled from primary clinical sources including PubMed, the Cochrane Library, and the National Center for Complementary and Integrative Health (NCCIH). Evidence ratings reflect published human trial data at time of writing. This content is for informational purposes only and is not a substitute for professional medical advice. Read our full disclaimer.