Below is a guide our clinic gave us when we had Covid. (Quercetin is misspelled on the paper). Quercetin and Zinc combo is a powerful attack force on whatever virus. My doctor says the Quercetin carries the Zinc through the cell walls and the Zinc kills the virus. Good for more than Covid, even helps with colds. We maintain everything but the Melatonin to keep our immune system up. The Melatonin helps with breathing, if you have that problem. (Don’t know why it turned sideways). Our clinic also gave us Ivermectin and a Vitamin D nutrient drip intravenously.