Why is non-school-medicine inherently non-evidence based? Yeah there's a ton of garbage out there, but I think it's been abundantly shown that incentives are screwed up enough that many mainstream healthcare providers will often ignore potential treatments or even conditions for which there is evidence (but for which they don't have a pill to sell you) or leading to it not getting studied enough to be considered evidence-based.

Classic example is fibromyalgia: family member of mine believed they had it and now has a formal diagnosis, but was told by multiple doctors that it wasn't a real thing and probably all in her head. Went to a chiropractor who dabbled in all sorts of stuff who ended up helping her manage it really well with some diet and lifestyle changes. Now I don't know how well those recommendations were backed up by evidence, but I was blown away at how a few months later there was a widely-advertized FDA-approved drug to treat a condition that according to at least 5 or 6 doctors in our town didn't exist (and they all suddenly recognized it and had fliers for it in their offices). It's amazing how suddenly the "evidence" came up the minute it had a marketable drug.

So school medicine is evidence based, huh? Anyway, I even said "if it does not help you"... Obviously that means that instead of accepting your illness you should try other methods. If you think that school medicine has the interest of helping you, or that if they can't help you, you are out of options... Well then you are wrong on both counts.

Maybe read up a bit about Rockefeller medicine. He also founded the American Cancer Association. I am sure he didn't do it for money.

School medicine is a trillion dollar business. You are a fool to believe that their best interest is your health. That of course does not mean that it won't help you, but it also doesn't mean that it's in your best interest (neither health wise nor cash wise) and that it has answers to all illnesses (in fact, only if it brings money, and not curing chronical illnesses brings in a lot of money).

That again does not mean that school medicine is all cash and business. There are people who take it seriously and want to help people (most doctors I naively assume). But here are equally many who don't (pharma lobby) and those are much more powerful. It is a constant battle between good & evil to your disadvantage. The least you can do is have a critical eye on what they have in store for your illness. If you blindly accept any treatment and diagnose they give you, then I am sorry for you.

Just to note, @martamoreno did mention that once conventional medicine has exhausted its options to then try alternatives. I don't know whether it was meant as tacit approval of those methods but it was merely suggested that there are alternatives (though in my opinion I would have mentioned that they are alternatives in name and not intended to equivocate them to conventional medicine.)

Homeopathy is non evidence based but there have been and still are various schools of medicine which works for people. Irrespective of something proving it in trials, once you have exhausted the tradition optional, placebo is all you have.