Probably all good advice. We have been doing the Vitamin C, D, and Zinc since close to the beginning of the Covid era. We have gotten lax lately and that’s probably why I’m sick posting today. I’ve got to get better so I can go back to work! I hope this thing lets go over the weekend.
Quercetin is really good too, especially with zinc.
Anytime I’ve had sinus issues it wipes it out fast