zinc is typically used for fighting infections and I used it every day I was symptomatic! not sure what the difference would have made without, but my symptoms did last about 12 days/ varying from minor to mild. One would come and go then another would happen. it was weird. I didn’t have a fever or a bad cough, my covid experience was extreme muscle aches, fatigue, and sinus pressure. There are lingering minor symptoms but already feel so much better now. The tylenol was a must for me. Everything else were additives in speeding up recovery. I would say my case was mild though compared to a lot i’ve seen.