Drugs to protect the gastric mucosa can be given for atrophic gastritis. If there is Helicobacter pylori infection, quadruple therapy can be used; patients with abdominal distension can also be given gastrointestinal power drugs to treat. 1. Drugs to protect gastric mucosa: commonly used drugs are aluminum sulfate, magnesium aluminum carbonate and so on. 2. Quadruple therapy: For patients who are clearly infected with Helicobacter pylori, quadruple therapy is needed, that is, in addition to a proton pump inhibitor such as omeprazole, and a bismuth agent such as fucus bismuth, two antibiotics such as amoxicillin plus clarithromycin need to be used. The course of treatment is 10 to 14 days. 4. Gastric stimulants: such as mosapride and itopride to improve gastrointestinal dynamics. Patients with atrophic gastritis are advised to seek timely medical attention and use medication under the guidance of physicians.