My reactive arthiritis in my feet started last February and I know how horrible it is. I am unable to take MX due to other intestinal problems and they are trying to hold off on sulfasalazine due to me being allergic to many drugs and the fact I have so many other problems which brought about the reactive arthiritis. They gave me prednisone which really helped alot until I finished it and eventually the swelling returned although not to the extent it was before. I now take voltaren (which is horrible on the gut) but does tend to hold the swelling to tolerable limits and helps with the stiffness and pain. It took them until November to finally diagnose the problem and this was after seeing 5 different doctors, cat scan, mri and finally a bone scan. Sometimes I even wonder if the rheumatologist is sure what I have. I kinda think it is caused by some of the drugs I take because as I am trying to wean off them the swelling gets better but when forced to go back on it......it comes back. It is very frustrating. How are you handling the medicine? Any side effects?