“tried a bunch of the stuff that doesn’t work (Ivermectin, Vitamin D, etc.)”
It didn’t work for him. It works for a lot of folks who use it.
That’s kind of vague. When and how did he take these things?
And he may have tried it after it already gained a strong foothold in him.
From earlier stories if you can catch it before it gets into affecting the lungs, you firt attack it by bosting your antioxidants to knock it out hard while its small. Once it gets into the lungs you have to switch how you treat it to avoid cyktokne storm/excessive inflammation that kills people off, and you switch to stuff that is antiviral and antibacterial but doesnt increase your inflammatory responses.