I have been reading this forum for a while now and decided to join today. My son (10 yrs old) was diagnosed last year with Crohn's disease (then confined only to large intestine) and earlier this year developed perianal fistulas. Our GI has tried Flagyl, Cipro and Protopic ointment to treat the fistulas, but they are still there and do not seem to be improving. Our GI has recommended that we start my son on Remicade, but we are very reluctant to do so because of the scary, but rare, side effects (particularly the risk of lymphoma given his age). Other than draining, the fistulas do not seem to really bother him, and we would like to try low dose naltrexone to see if it would help. I appreciate all of the many people who have posted here and look forward to maybe finding some information that may help us to make the best decisions that we can for our son.