I agree with the above posts. My ulcerations are in the rectum so the rectal meds are always prescribed. Good idea to see a new GI doctor if you aren't comfortable with the one you are seeing now. It is very important to have a good patient/doctor relationship.
If you feel Asacol isn't working ask about Lialda. I read where some people are doing very well on it. Good luck. Hope you feel better soon.