Sounds like you've tried the topical approach. Doctors can also prescribe systemic immunosuppressant solutions as well, though. Often orally. You may be ready for that step. Even then, there's another step past that with drugs that can only be injected, like biologics (often something like an antibody that shuts down the human inflammation system). There are big trade offs in expense, delayed action, side effects, etc. in all these, so don't feel bad about starting out with topical. It was worth a try, as they say.
