Grade A reflux esophagitis refers to endoscopic esophageal mucosal breakage less than 5mm, and its treatment mainly includes general treatment, drug treatment and so on. 1. General treatment: Usually, attention should be paid to the fact that it is not suitable to lie down immediately after eating, and to reduce constipation, obesity and other factors that cause the increase of abdominal pressure. Avoid eating chocolate, coffee, strong tea and so on. 2. Drug therapy: commonly used drugs include proton pump inhibitors, such as omeprazole, lansoprazole, etc.; H2 receptor antagonists, such as famotidine, ranitidine, etc.; gastrointestinal stimulants, such as domperidone, etc.; gastric mucosal protectants, such as magnesium aluminum carbonate. The use of specific drugs should be under the guidance of a doctor. If there is any discomfort, it is recommended to consult a doctor in time for diagnosis and treatment.