I am diagonsed with Ank spondylitis in 2006. HLA B21 is tested positive. My CRP of blood is maintaining between 3 to 6 scale. I am taking Saaz DS 2000 mg daily from past 6 months. I am doing back pain reliving excercise also. I am looking for better treatment as stiffness in back pain is controlled but not finished. Pls suggest some treatment if any new reasearch in this field is going on.