I had a girlfriend who suffered with Crohn's Disease. She was diagnosed in 1984 at age 37. That was the first time I ever heard of Crohn's. Apparently, her GI doctor never told her she had to taper off the prednisone, or, if he did, she did not follow his advice. She took herself off cold turkey and developed Addison's Disease. Not to scare you, but she is now deceased.
I was diagnosed with UP (proctitis) at age 52 in 1998. The diseases are quite similar and it took a few colonoscopies before my GI doctor was satisifed it was not Crohn's. Long story short, I became prednisone dependent. Seems like each time I suffered a flare, the only medicine able to help me into a remission was the prednisone. It gave me full blown osteoporosis, uncontrollabe high blood pressure and type 2 diabetes. He placed me on 6MP back in 2002. That was the medicine that played havoc with my pancreas and liver. I also tried Remicade and then Humira, all to no avail. After being prednisone dependent for two years straight, I consulted a colorectal surgeon and had a total colectomy with end ileostomy in June of 2010. Soooo happy to be off all those meds. I am sure I would not be here today had I not had the surgery.
Not recommending surgery to you, but it was the best thing for me.