There is no so-called special-effect medicine for chronic enteritis, and it needs to be treated according to the cause and symptoms. Chronic enteritis is divided into inflammatory bowel disease, chronic infection enteritis, radiation enteritis, etc. Different drugs should be chosen according to different causes. 1. Inflammatory bowel disease: it needs to be treated according to different periods of the disease. Mild enteritis can be treated with aminosalicylic acid inhibitors, such as mesalazine and sulfasalazine; moderate enteritis needs to be treated with glucocorticoids. 2. Chronic infectious enteritis: Persistent infections with microorganisms such as Clostridium difficile can cause chronic infectious enteritis, and the most common symptoms include chronic or intermittent abdominal pain, poor appetite and diarrhea. Intestinal bleeding and iron deficiency anemia may occur in severe infections. Vancomycin, metronidazole and other antibiotics can be used for treatment, and surgical treatment should be carried out when intestinal obstruction exists. 3. Radiation enteritis: Abdominal or pelvic radiotherapy can damage intestinal structures, especially the ileum and rectum. Diarrhea can be improved with antidiarrheal agents such as loperamide. If there is intestinal obstruction and intestinal adhesion, surgery should be performed in time. All of the above drugs have certain risks, patients need to get the guidance of specialists, do not use drugs privately, so as not to cause danger and delay the condition.