Interesting article claims that using a 1% Hydrogen Peroxide rinse and gargle may keep COVID away.

https://www.ghanaweb.com/GhanaHomePage/NewsArchive/COVID-19-Hydrogen-peroxide-provides-immediate-protection-Prof-Ayettey-1161466?fbclid=IwAR1cgvKQxVITIrITyu6LjCRTLIEfasdkg3cLjxQK14kevM1lcTTtk5HliCk