Damaged gastric mucosa is mainly repaired through general treatment, medication, etc. The medication usually includes magnesium aluminum carbonate and omeprazole. Damaged gastric mucosa may be caused by improper diet, such as frequent consumption of stimulating food or overeating, may also be caused by alcoholism, it is recommended that patients must adjust the diet, eat more light, easy to digest food, and should be on time for meals, less spicy and stimulating food, and avoid alcohol. In order to promote the repair of gastric mucosa, oral gastric mucosal protective agents, such as magnesium aluminum carbonate, bismuth potassium citrate, aluminum thiosulphate, etc., can also be used with acid-suppressing drugs, such as omeprazole, rabeprazole, etc., which are able to neutralize gastric acid to protect gastric mucosa. When the gastric mucosa damage occurs, it is recommended that patients go to the gastroenterology department of the hospital in a timely manner, cooperate with the doctor to take treatment, and do not use medication arbitrarily on their own.