I have been in remission since my surgery in 1984! No evidence of CD since then. I have been blessed. My CD was really, really advanced when they did my last surgery in 1984. The surgeon removed rectum, what was left of the large, and several feet of small. Prior to that I had several resections, and a temp. ileostomy to no avail. Didn't respond to any of the drugs that were on the market at that time.
I do take "maintenance" drugs for the diarrhea that is normal with an ileostomy -- with as little gut that I have left. (RX imodium - start my day with 3 capsules but usually don't take any more with my change of diet a year ago (was taking 3 capsules 3 times a day), Bentyl prn, & Nexium prn (recently my gastric ulcer has healed- change of diet again). I have been so fortunate and am totally aware of that. I have had my trials along the way with "bugs" and partial obstructions.