Damaged gastric mucosa can be treated with acid-suppressing drugs and mucosal-repairing drugs, as well as eating light, easy-to-digest, alkaline foods. Gastric mucosa damage is often caused by excessive secretion of gastric acid, the treatment is mainly to inhibit gastric acid secretion, you can take omeprazole, rabeprazole, pantoprazole and other acid-suppressing drugs for treatment, and with the mucosal protective agents, such as aluminum thioglycollate, bismuth potassium citrate, bismuth pectin and so on. In addition, after the gastric mucosa is damaged, the diet should be as light and easy to digest as possible, avoid eating spicy and stimulating food and too greasy food, which may cause damage to the gastric mucosa, you can eat alkaline food, such as noodles, soda cookies, etc., which can play a role in neutralizing the role of gastric acid, and is helpful for the repair of the gastric mucosa. All of the above medications should be taken under the guidance of a doctor, and patients should not use the medication on their own.