Protecting the gastric mucosa is a Western medical term, Chinese medicine is to relieve stomach discomfort by nourishing and harmonizing the stomach, treating the clinical symptoms of modern chronic gastritis, etc. Commonly used medicines include Xiangsha Nourishing Stomach Pill, Warming Stomach Relief Pellet, Morodan, and so on. Xiangsha Nourishing Stomach Pill has the efficacy of warming the middle and harmonizing the stomach (warming the spleen and stomach, harmonizing the stomach and internal organs), and is mostly used in the treatment of stomach pain, plumpness (stomach distension and discomfort), vomiting of acid, vague pain in the stomach, noisy (stomach feeling similar to hunger, emptiness with burning) discomfort, lack of food and drink, and tiredness of limbs and other conditions caused by stomach yang insufficiency and stagnation of qi. The adverse reactions and contraindications of the drug are not clear. Wen Gastric Shu Granules has the effect of warming the stomach and relieving pain, and is used for the treatment of chronic gastritis, cold pain in the stomach, and pain aggravated by cold and cold in diet, etc. The adverse reactions of this drug are not clear. The adverse reactions of this drug are not clear, and it is contraindicated when there is gastric hemorrhage, and pregnant women are contraindicated. Molodan has the effect of harmonizing the stomach and lowering rebelliousness (harmonizing the stomach qi, making the upward reversal of qi down), strengthening the spleen and eliminating flatulence, and clearing the channels and fixing the pain, and can be used in the treatment of chronic atrophic gastritis with stomach pain, distension, flatulence, dullness (lack of appetite, reduced food intake), belching (belch) and other symptoms. The adverse reactions and contraindications of this drug are not clear, avoid eating stimulating foods and drinks during the medication, pregnant women should be careful. Under the guidance of a doctor to choose the appropriate drug treatment, not self-medication.