We've been on the Zelenko Protocol for about a month or so. We had a nasty cold come through, we each had it for only a few hours, as soon as my son got sick I went to the higher dosages for a week. Wasn't sure what it was at first, but we all cleared it very quickly. It's a good idea to have some sort of digestive enzyme with Quercetin, makes it more effective. Either some papaya, pineapple, or a papaya enzyme tablet, which are very tasty! We also added NAC, N-Acetyl Cysteine.
Of course we have our horsey paste and HCQ ready. One thing that's worked for us in the past for pneumonia is running 5 ml of 30 ppm colloidal silver through a nebulizer, taking about 20 breaths 3x/day. My son got sick when he was a toddler, they gave us the nebulizer and albuterol, I tossed the albuterol in the trash and used the silver instead, his lungs were clear when we went back for a follow-up 3 days later. Doctor said "guess the albuterol worked really well".