Hey fenway... sorry to hear 6MP didn't work for you, but don't freak out! I know, easier said than done...
I, too, was not able to tolerate 6MP. I'm kind of lost on where to go next, so I can't really offer advice; but I can tell you we are kind of in the same boat, so you're not alone.
Have you tried Imuran (Azathioprine) already? (It's similar to 6MP, but maybe you would tolerate it better?) I tried Imuran first, then 6MP but couldn't tolerate either. My doc said if you can't tolerate one, you might tolerate the other (guess that wasn't so in my case! but maybe it will work for you!).
I have been given the following options, and I'm having trouble deciding which way to go:
-Methotrexate
-Humira
-Remicade
-Cimzia
There are also the probiotics that Pen is having success with, VSL#3, but that might be expensive and I don't know if doctors are willing to try it ahead of prescriptions.
I've been on 4 rounds of prednisone in 2 years, so I am also hoping to acheive success with a maintenance drug... With Crohn's, finding the right medication is very much trial-and-error. I guess we'll never know until we try! Let us know what your doc suggests and how things go with the new med. *hug*