When I contracted COVID late last October, I contacted my family doctor because I am a heart patient that had bypass surgery at the end of 2017.
In addition to C/D/ Zinc, he recommended 5/10 MG Melatonin at night and 20 mg Pepcid twice a day. It was just like a bad cold to me. Headache 1 day. No fever and never lost taste and smell. I did not have the terrible fatigue that many have, either.
I have read of famotidine being used.