Gastric mucous membrane damage may be caused by bad habits, chronic gastritis, gastric ulcer, drug effects, etc. The methods of conditioning include correcting bad habits, medication, and avoiding drug abuse. 1. Bad habits: such as eating fried food, smoking, alcoholism and so on. Patients should quit smoking and limit alcohol, eat more fresh fruits and vegetables, exercise properly, and avoid pickled and barbecued food. 2. Chronic gastritis, gastric ulcer: the main application of drug therapy, acid inhibitors such as omeprazole, pantoprazole, etc.; gastric mucosa protection drugs such as aluminum thioglycollate gel, prostaglandins and so on. Combined with Helicobacter pylori infection needs eradication treatment, commonly used a proton pump inhibitor + a bismuth + two antibiotics quadruple therapy to eradicate Helicobacter pylori. Commonly used proton pump inhibitors are omeprazole, pantoprazole, etc., bismuth has bismuth pectin, bismuth potassium citrate, etc., antibiotics have amoxicillin, metronidazole, clarithromycin, etc.. 3. Drug effects: such as long-term use of non-steroidal anti-inflammatory drugs such as aspirin and other drugs, or the application of anti-tumor drugs such as oxaliplatin, etc., can cause gastric mucosal damage. It is recommended to use drugs under the guidance of a doctor, and change drugs or stop using drugs if necessary. In addition to the above diseases, long-term stress and nervousness can also cause gastric mucosal damage. It is recommended to go to the hospital to find out the cause of the disease and take regular treatment under the guidance of the doctor. The above drugs should be used under the guidance of doctors and pharmacists, and avoid blindly using drugs on their own to avoid adverse reactions.