i find all the replies really interesting to this question. i wanted to add my experience to this thread.
my H is the crohnie, and a alcoholic. 2 drs have refused to treat him until he stops drinking. both told us alcohol is very bad on his stomach and bowel. with his drinking, he also does not take his meds as directed, which is like 4 times a day. so he stays in a flare, bleeding with D, all the time.
interesting how one dr will say its ok, and one will say bye to the patient who drinks.
they did say one beer is ok, or one glass of wine. he drinks like 3 6 packs or a entire bottle of wine at one time.
so he now has no gastro dr at all and wont until he goes to rehab.
possibly it depends on how much one drinks, how often, and how compliant one is with the meds and diets. since my H is not compliant, its a waste of time, and money. these meds are not cheap, might as well pour em down the toilet...so to speak. when one month supply lasts 3 months, its obvious he isnt taking them as directed.
my H has crohns in his stomach also, and its documented what alcohol does to the stomach lining,it just tears it up worse.