Long COVID Treatment 2026: What Randomized Clinical Trials Actually Show
Long COVID remains one of the most difficult post-infectious conditions to treat because it does not behave like a single disease with one mechanism or one universally effective therapy. Patients may experience fatigue, post-exertional symptom exacerbation, brain fog, shortness of breath, sleep problems, dysautonomia, pain, palpitations, gastrointestinal symptoms and many other problems, often in combinations that differ substantially between individuals. So what treatments actually work? The most reliable way to answer that question is to examine randomized clinical trials , especially studies with appropriate control groups, clinically meaningful outcomes, adequate sample sizes and sufficient follow-up. This 2026 evidence guide reviews important randomized human studies of antiviral treatment, microbiome-targeted therapy, intermittent fasting, metformin, h...