Use for: Echinacea has been used for prevention of the common cold and treating infection with a little evidence but it was thought to reduce infection by stimulating the immune system. Immune system related efficacy is not known but antiviral effect of Echinacea may have shown the beneficial effect on prevention of common cold or related symptom relief with a little evidence for now. Other effects of Echinacea would include antibacterial effects, antifungal effects, anti-inflammatory effects, antioxidant effects, antiviral effects, immunologic effects and wound-healing effects.
Prevention and efficacy for COVID-19 are unknown with antiviral or immunologic effects related assumption with little evidence. It is also used for the adjunctive treatment of common infectious processes of viral or bacterial origin.
Concerns: Echinacea should not be taken by individuals with auto-immune disorders (eg. HIV, Rheumatoid arthritis), tuberculosis, leukocytosis and multiple sclerosis. Do not use Echinacea on pregnancy and lactation. For the individuals with those diseases should consult with their physicians for the use of Echinacea.