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https://www.covid-19forum.org/index.php?topic=227.0
An excellent site for natural therapies and remedies for all sorts of ailments. You can read comments on what works and what doesn't for others.
https://www.earthclinic.com/
Including some suggestions for COVID-19. I can't believe that quercetin+zinc isn't at the top of the list.
https://www.earthclinic.com/cures/coronavirus.html