I'm with fruitgirl...I'm a huge fan of both oral mesalamine and the enemas...it's like a double whammy...oral for further up in the colon...enemas for the rectum and lower bit of colon (which can be the hardest to heal). I tried oral only...it helped...but with the enemas too...bam...remission.
Something you may need to learn now...with a disease like this...you are your own activist. No one else will do it for you. My GI...who I like very much...told me once...a disease like this is all over the board, everyone responds differently...you need to tell me how you are feeling and what you want to try. It's pretty much been my call the whole time. But I was also very well informed of the meds when I walked in there. It sounds like YOU are taking the right steps, watching for yourself. Now you need a GI who will work with you.
Keep us posted, best of luck.