90 days med?

Taking only 90 days of any medicine for Crohns, then stopping and waiting for the next flare, IMO this is not a good recommendation. I also agree with the 2nd DR that Pentasa is more likely to treat the ulcers than Apriso, since it is active throughout the digestive tract and I think Apriso is primarily active in the colon, which is past the ileum.

I'm not sure I understand where you are now regarding your symptoms, are you currently having more diarrhea or more constipation? And what meds are you currently taking?

I hope your back feels better soon.

I'm not sure that Pentasa is causing your C. Try either using Miralax or Metamucil pills and colace for the C. Apriso and Pentasa are basically the same medicine, except that Apriso releases the medicine in your colon and Pentasa releases it in your small intestine, so if your Crohn's is in your ileum, the Pentasa should be better. The flagyl and Pred may have helped to heal the ulcers, and the Pentasa, which is an anti-inflammatory medicine may help prevent another flare. I agree with Kazbern, that most docs will keep you on Pentasa indefinitely as long as it is working for you. When I was first diagnosed, I wasn't having any abdominal symptoms....I was very anemic, and then with a Pill Cam test, they discovered bleeding ulcers and Crohn's in my ileum. Crohn's is a disease that flares and goes into remission, sometimes on it's own, but the meds are meant to help prevent flares and/or treat them when the Crohn's is active. Go the the ccfa.org website, and you can read more about all of the medications. I hope this helps and you get to feeling better soon.