I was diagnosed with Crohn's in mid-December, and put on 40mg of prednisone along with pentasa. I've been tapering since mid-January and had to go back up a couple of times because my diarrhea came back. I finally got down to 10mg this week, and I think I'm going to have to go back up again. Is it normal to have lots of problems with tapering, or is it possible that the pentasa isn't working?