I was diagnosed with A.S. when I was 41 I am now 62. I do not take any medication unless I simply have to. when my back starts to hurt, I use a moist heating pad which is hand controlled and produces its own moisture. It is highly recommended by the Arthritis Foundation. It is called Thermopore Automatic Moist Heat Pack. It relieves the pain and I am able to function much better after about l/2 hr. I am also into brisk walking. I walk 2-3 miles at least every other day. It is very important to keep your body agile. You can chat with me at any time or if you have any further questions or want to make comparison. Feel free to contact me or we can go into a chat room if you like. Good luck to you.