Sorry you're feling discouraged. Trust me, I know how you feel. I am in the same boat. I am on prednisone and have been for quite a while, always experiencing blips... worst of all, I've gained a lot of weight and my self-image has gone way down. I am really feeling down on myself and I feel like I will never be off of prednisone. Not only that but I feel like surgery is imminent but worst of all, I know that it is just my luck that if I have surgery Ill have some terrible complication or end up worse off. Sorry to be negative but I just have awful luck and this illness has been a roller coaster for me. I haven't had any good, long remission. I was in remission from Asacol for a year but that ended abrupty with a horrendous flare in January that I still haven't gotten a full handle on. I Had a colonoscopy and while my GI said it doesn't look terrible, my symptoms were unbearable. Anyway, I wouldn't stress too much about
Remicade, it may help.
Have you tried 6mp or immuran? Could you try increasing your prednisone dose or staying at 40mg until your symptoms subside completely? Maybe you can get off prednisone without any issues and you won't have to start any new drugs. I do understand why your GI says Ascol won't help, it seems like if it stops helping, it's not going to help again in the future. It doesn't help me anymore.
I tried the SCD diet and it didn't help me at all. It was good for keeping my weight down...