No food can repair the gastrointestinal mucosa. Commonly used drugs for repairing gastric mucosa include aluminum thioglycollate, colloidal bismuth pectin, bismuth potassium citrate and teprenone. 1. Aluminum thioglycollate: Aluminum thioglycollate can make epidermal growth factor gather in the ulcer or inflammation, which is beneficial to mucosal regeneration. The more common adverse reaction is constipation. 2. Colloidal bismuth pectin: It can form an effective protective film and stimulate the gastrointestinal mucosal epithelial cells to secrete mucus, which helps the epithelial cells to repair themselves. Occasionally, gastrointestinal symptoms such as nausea and constipation may occur. 3. Bismuth potassium citrate: it can form a protective mucous membrane layer in the acidic environment of the stomach and prevent the gastric acid from attacking the gastric mucous membrane. It is contraindicated in patients with severe renal disease. 4. Teprenone: used in acute gastritis, acute exacerbation of chronic gastritis, improvement of gastric mucosal lesions and gastric ulcer. Adverse reactions include constipation, diarrhea, abdominal pain, abdominal distension. The above drugs should be used under the guidance of a specialized physician. Food does not have the role of repairing the gastrointestinal mucosa, the emergence of discomfort immediately consult a doctor, under the guidance of a medical professional for early treatment.