LessWrong has hosted a few posts that at least in part tell people what they should do upon getting COVID. That being said, they don't seem to have been updated since last March, and presumably more must be known now. The topic is newly relevant now that the delta variant is spreading in many locations, with vaccination rates being low in most countries.
Someone could look into Ivermectin, and other claims made by the FLCCC and friends.
I wonder why other antivirals(faviparivir, oral remdesivir) aren't getting more attention compared to ivermectin.
https://blogs.sciencemag.org/pipeline/archives/2021/06/07/ivermectin-as-a-covid-19-therapy is one of the better, current overviews of Ivermectin. Basically, we don't have enough information.
It had proven antiviral effect against SARS-CoV-2 in cell cultures, but it required doses high enough to be toxic. I've heard of some cases where people self-administered veterinary Ivermectin doses intended for horses and had to be hospitalized. I think this is the reason it's being censored on social media.
But might it be effective at lower doses or in combination with other drugs? Last I heard, that was still under investigation and the evidence was not yet conclusive. My information could be out of date though.
There seem to be meta studies that support it and meta studies that don't. The decision about whom to believe isn't easy.