When I am flaring really bad, here is what helps me...
I stay away from any spices, anything fried, no soda, absolutely no sweets no cookies, no tomatoes, basically nothing acidic. Nothing with caffeine in it, no coffee! I find that hard boiled eggs help bulk up the stool. Also I eat a lot of plain white rice (make sure that it is cooked very well) and plain white baked chicken breast, baked salmon. Eat plain mashed potatoes with a bit of salt, they also help. Also, turkey sandwiches on plain white bread a bit toasted. Absolutely no lettuce, no salads!!! Also, do not drink extremely cold or hot beverages. Try to drink fluids at room temperature. Do not eat fresh fruits with skins on them or seeds in them. If you must, then try a peeled apple,( I sometimes bake the apple or cook it in the microwave to soften it up) and maybe a very well ripened banana. (And chew them very well.) Also, stay away from salty and very fatty foods.
I know all this sounds sooooo restricting, but it gets me through a bad flare...hope this helps..
I like to use CONGEE (rice porridge) to get my system back on track. Even when I feel at my worst but I know I have to eat something I can almost always tolerate and really enjoy Congee. there are plenty of recipes on line and I Ithink I posted mine on here a short time ago.
The really great thing, IMO, about Congee is that you can add various foods to the mix as you begin to feel better so this way you work way back to regular foods. It is great for colds, the flu and especially for flares. I have eaten it for breakfast, luch and dinner (sometimes in the same day)
As I begin to feel better I add in chuncks of chicken or shrimp. It only takes about 25 minutes to make including the time it takes to cook the rice if you use pre-made stock. I stay away from the beef stock and mostly use chicken stock and sometimes veggie stock. the other night I used a stock that was a blend of chicken broth, coconut milk and curry. I put in a touch of lemon grass and it was great.
if you feel you might like to try it and can't find a recipe you like let me know.....I can post it again.