The treatment of enteritis and colitis should be individualized and comprehensive according to the patient’s condition. Generally speaking, patients should control the symptoms of the disease as early as possible, promote remission, maintain treatment, prevent recurrence, prevent and control complications and grasp the appropriate timing of surgical treatment. In general, patients should take rest, prevent overexertion, and eat a highly nutritious, easily digestible diet with low fat and low residue. In severe cases or with complications such as megacolon or intestinal fistula, total parenteral nutrition should be given. Drug therapy is mainly with aminosalicylates, such as salazosulfapyridine, mesalazine, and olsalazine, but only if prescribed by a physician. In addition, patients can be treated with glucocorticoids, commonly used drugs such as prednisone and prednisolone, which are effective drugs for suppressing inflammation in the acute active phase of ulcerative colitis. If the patient has hemorrhage, perforation or imminent perforation, the patient should be promptly treated surgically.