I have a friend who takes mangosteen - she swears by it (but she does not have TOS).
I take Diclofenac also - it's the generic for Arthrotec 75mg (This already has a stomach protectant in it). Arthrotec/Diclofenac is my first line of defense and usually will prevent a serious flare. Diclofenac does NOT have a stomach protectant, but since I already take Nexxium, it's OK for me. One side effect: diarrhea. I credit that for my consistant weight loss.
Be sure to take this med with food - or you will be sorry!!!
When the NSAID does not help I use valium (if it's nerve pain or muscle spasms) or Percocet 5/325 (if it's bone pain).
Anne