The first is that patients with chronic colitis cannot drink alcohol, which means they must stop drinking, and they cannot drink alcoholic or stimulating drinks, such as strong coffee, strong tea, carbonated drinks and other such high sugar and high calorie drinks. The second, chronic colitis patients can not eat cold food, such as ice cream, ice cream, raw fish and so on some of these foods are not allowed to eat. The third, high-fat food, also known as junk food, such as fast food food, because this food is particularly bad digestion, chronic colitis patients can not eat.