I hate to tell you this Wimom, but I would consult with a colorectal surgeon. Your options are just about running out.
My ulcerations were only confined to the rectum and stayed that way for the entire twelve years I suffered. I have no idea why I only had luck with the prednisone but you know what it does to your system. I was scared stiff that my Adrenal glands had shut down completely like my close friend who suffered with Crohn's for 20 yrs. She developed Addison's Disease and passed away in 2005 at age 58. She died from sepsis.
You're right, if you are just responding to the prednisone, like I did while on Remicade, the Remicade isn't doing a darn thing! We all hope that the next med will put us into remission. That is why I gave Humira a shot after Remicade failed. However, the infusion nurse told me that if Remicade failed, it is more than likely Humira will fail too
. Oh well, surgery is a scary thought and NO ONE was more scared than I. I was in complete denial that I needed the surgery. Suebear, from this forum, jerked me into reality. She said my GI doctor was not my advocate. He sure as hell wasn't. All he wanted was for me to try more and more meds.
I am thoroughly convinced, had I not had surgery, I would not be here today.