In case anyone wants a rough and likely inaccurate guide to what I might do if I had covid to mitigate it, I looked into this a bit recently and wrote notes. It’s probably better than if one’s plan was to do less than a few hours of research, but is likely flawed all over the place and wasn’t written with public sharing in mind, and um, isn’t medical advice:
Here’s a Google doc version, where any comments you leave might be seen by the next person looking (and you might see comments added by others).
Here’s a much longer doc with the reasoning, citations and more comments.
(I continue to guess that long covid is worth avoiding.)
Peperine (black pepper extract) can help make quercetin more bioavailable. They are co-administered in many studies on the neuroprotective effects of quercetin: https://scholar.google.com/scholar?hl=en&as_sdt=0,22&q=piperine+quercetin