Research has proven that Cannabis can benefit patients suffering from inflammatory bowel diseases such as crohns and ulcerative colitis. Patients gain relief by inhaling cannabis, or using tinctures, edibles, or suppositories. I would start with a whole-plant, full-spectrum extract of cannabis with a 5:1 ratio of CBD:THC. (you can try any ratio, the more THC, the more psychoactive and pain relieving). Start with a small dose (up to 10 milligrams total cannabinoids) and wait for 30 minutes and then try a bit more. The anti-inflammatory properties of CBD and other compounds in cannabis will have long term beneficial effects.