Why isn't anything working!!??

I'm so mentally exhausted. I've gone through so Many treatments, the only thing that has ever helped was PUVA light therapy and taking Prednisone. But both only helped a little and didn't get rid of the problem....I'm just getting referred to doctor after doctor.....I don't even know what else to do other than wait and hope some doctor eventually has a epiphany and finally finds something that works!