If you are talking about rheumatoid arthritis, then yes, the hookworm treatment mentioned above (not from Zamboni) is applicable. As mentioned before, the theory is that worms emit something that slightly suppresses the immune system (so that they don't get killed). Some people report that this suppression also suppresses their auto-immune disorder. Clinical trials are going on in Nottingham for MS, and sweetpea reported earlier that the same department is also looking into gluten intolerance, maybe rheumatoid arthritis and asthma as well, I don't know.

They are not quite as icky as they sound. Apparently the eggs have to leave the body and infect you through the skin, so it is not like they can breed out of control inside you. In fact I believe you have to keep reinfecting yourself from time to time.