have you tried vitamin e enemas? someone on the ulcerative colitis (very similar to what you have) forum completely cured themselves with this protocol. here is the post, i think its worth a try.
also cabbage juice is AWESOME for the gut, fresh made yourself. the bowels love it and thrive on it. cabbage/apple/lemon juice is super yummy and very healing. also perhaps look into homemade sauerkraut, again the bowels love that. store bought is no good, don't even mess with it. i can find more info on curezone if you are interested.
are you getting plenty of omega 3's? thats important for you also.