It is true a Dr could in theory do what they want to but there are treatment guidelines and if they vary off that too much then the medical board could get afte

It is true a Dr could in theory do what they want to but there are treatment guidelines and if they vary off that too much then the medical board could get after them. This happens I know a Doctor who wanted to treat lymes disease for patients and the medical board didn't like that it seems she was experimenting with what would work to treat it (this was about 15 years ago when it was pretty new).