Given the pretty unpleasant toxic and addictive side effects of many of the meds they give you for Crohn's, I am quite happy to put my hand up and say that marijuana helped me a great deal during my "undiagnosed" year of hell, it enabled me to have an appetite in the evening and avoid losing too much weight, helped me relax a bit and sleep. It is illegal in my country but during that period it stopped me going mad or diminishing. There is a lot of complete bollox talked about it and I can only say that "medical" MJ (i.e. not skunk) helped me survive physically and mentally. But that's me - not necessarily for anyone else and I don't drink or smoke or do any other drugs except those I have to accept for Crohn's.