The way to protect the gastric mucosa is through the regulation of lifestyle and diet, oral aluminum sulfate, bismuth potassium citrate and other drugs, need to follow the doctor’s instructions for medication. 1. Regulate lifestyle and diet: To protect the gastric mucosa, you should eat regularly, have three meals on time, and do not overeat or go on a diet. Diet to avoid eating to the gastric mucosa stimulation of food such as spicy, stimulation, too cold, too acid, too rough food. You can eat easy-to-digest porridge, noodles, fresh vegetables and fruits, and also need to pay attention to adding protein to ensure balanced nutrition. Avoid smoking and drinking. 2. Oral medication: if the gastric mucosa lesions, you can follow the doctor’s instructions to use drugs to protect the gastric mucosa, such as aluminum sulfate, which can form a layer of protective film in the stomach and can promote ulcer healing. There is also bismuth potassium citrate, can form a protective layer, can also reduce pepsin activity, thus protecting the gastric mucosa. Drugs need to be used in accordance with medical advice, the presence of gastric mucosal lesions, should be standardized under the guidance of a doctor, so as not to delay the condition.