In January I found this study
https://www.aestheticsadvisor.com/2021/02/quercetin-zinc-study.html
Quercetin is a safe natural anti-oxidant and anti-inflammatory polyphenolic compound that found in various natural sources include onion, red grapes, honey and citrus fruits. It was shown that quercetin has the ability to chelate zinc ions and act as zinc ionophore.
I have been taking Honey and Zinc with my multi-vitamin for the past 7 months. I ever wore a mask and when my wife got the covit/FLU I did not.
If you can’t get off the omeprazole make sure you take vitamins to off set the malabsorption. Mag and Ca especially bad. Also probiotics for the possible cdiff.