The main ways to repair the gastric mucosa are diet and medication. 1. Diet: first of all, avoid eating spicy, stimulating food that will make the stomach acid secretion, you can eat some rice porridge, millet porridge containing alkaline food to neutralize the stomach acid. 2. Drugs: You can apply gastric mucous membrane protection drugs, proton pump inhibitor drugs for gastric mucous membrane repair. (1) Gastric mucosal protective agents: can form a protective layer in the surface mucosa of the stomach wall to protect the mucosa, such as bismuth potassium citrate tablets, aluminum sulfate chewable tablets, etc., may have nausea, dry mouth, diarrhea and other adverse reactions after oral intake. (2) Proton pump inhibitors: can inhibit gastric acid secretion, reduce acidic stimulation of the gastric mucosa, thereby accelerating the healing and repair of damaged tissues, such as omeprazole, pantoprazole and so on. After oral administration, there can be nausea, headache, abdominal pain, diarrhea and other adverse reactions. All of the above drugs should be used under the guidance of a doctor, if there is damage to the gastric mucosa, it is recommended to seek medical advice as soon as possible, under the guidance of a doctor.