FYI..I find large doses of Vit C work better than benadryl FOR ME (2000-5000+mg) at a time)...in case you need options
I discuss Vitamin C in #1700. I’ve taken it for years and have taken it for infections a few times. If I start showing symptoms of the coronavirus, I’d probably start with 10 grams and then 2 grams every other hour, and note the results as I go.