Some people progress really quickly. At this point, is she looking at 6-MP? If that's the case, I would ask to have it prescribed with the pred to see if it works before I'd have another colonoscopy. If it doesn't work or you have an allergy to it, you're going to Remicade, right? It wouldn't matter, anyway. I mean, she's already asking you to wait nearly three weeks. . . .
GIs can treat by symptoms without seeing the colon, especially if the drug treatment doesn't change because of the colonoscopy, and in this case it doesn't seem likely.