I understand how very frustrated that you are and I have been there and been through this route that nothing in the world helps. Doesnt matter what the doctors say, nothing works and we are always relying on their education to help us and we trust them. But nothing still works
Please educate your self and understand what is going on and what is causing this. Once you have gotten to that point you then might have a very good understanding on how to heal yourself
I know what it was like as I had it for quite some time and it is awful and it is curable, just find your path. Use your energy to educate your self