I've seen a lot of self-taught doctor/pharmacists, touting the latest "antioxidant", "radical scavenging", homeopathy, hormesis... For all kind of diseases, developping their own regimen based on their experience of n=2 or 3. This has exploded with COVID. Even some friends that were presenting themselves as science-driven were taking ivermectin when they got infected and came up with all kind of justifications for it.