Easy-to-digest food, no sugars (including fructose/lactose), probiotics orally and up the butt, ginger teas (w/o sugar/cream), rice with turmeric powder and a bit of butter added to it, turmeric supplements, boswellia supplements.
I'm sort of in the same boat. I'm fighting off my next flare.
I've been using topical antibiotics for awhile now; so I'm not surprised. I'm bleeding a tiny bit but still no diarrhea and I'm only going once or twice a day. I seem to be holding my ground. It's been four days now, and I'm not getting any worse. Just a tiny bit of blood on the toilet paper after I go and a tiny bit of discomfort in the area that gets the ulcer. In the past, I'd be going diarrhea and bleeding a lot after the third day of seeing the first bit of blood.
Figuring out how to reduce a flare or get into remission is a trial and error experience. Don't expect your GI to have all the answers. He was trained in making diagnoses, prescribing medications, and surgically removing the colon. He was not trained in alternative treatments. That's why they are called alternative treatments.
What works for me: Fecal transplantation, Probiotics, Anti-inflammatory foods, No HFCS, No crystalline fructose, No foods high in fructose, No artificial sweeteners, No pro-inflammatory foods when flaring, Vitamins, Lexapro (for stress).