1st rheumatologist refuted diagnosis of AS (B27 positive, but xrays inconclusive). Same doc said condition is not very painful. I have had spine pain for 30+ years. 2nd rheum diagnosed me with an AS variant. I reacted to Enbrel and Humira with skin rashes inside elbows, so I am on Sulfasalazine. It is not reported to help spine pain in the AS literature. What benefits might I experience?