I am HLA-B27 positive, have AS and crohn's-related inflammation all over much of my bod. I am pretty sensitive to meds, and the best pain control med for me without being totally stoned is Ultram. When the pain is blinding and I can afford time off from actually having a life, I take hydrocodone. Get a good doc, that is your best hope, as per my personal experience anyway.-Opossumgirl