I agree with above advice, get a scope, see what is happening. Can you try rowasa instead of Canasa? Maybe you need something new. Hang in there and ask lots of questions, I also find that thanking office staff makes a huge difference in how they transmit messages to the doctor
43 yrs old diagnosed with proctosigmoiditis 6/13/13
meds- 4 Lialda (sfRowasa when needed)- supplements: probiotics (1 VSL3 cap, 1 culturelle and 1 reuteri) 1 gram krill Oil, 1TBSP p. seed powder, 2 g curcumin. Allegra for seasonal allergies as needed. Allergic to sulfites. Currently gluten/dairy free (except yogurt) and eating lots of RS.