Gastroesophageal reflux is mainly the reflux of gastric acid into the esophagus, causing acid reflux, heartburn, chest pain and other discomforts. GERD is mainly due to the relaxation of the esophageal sphincter, resulting in a large amount of food and gastric acid refluxing into the esophagus after the patient has eaten, causing damage to the esophageal mucous membrane. When a large amount of gastric acid stimulates the esophageal mucous membrane, acid reflux, heartburn, retrosternal pain and other discomforts usually occur within half an hour of eating or drinking, and are obvious when lying down. If GERD is more serious, radiating pain such as chest and back pain may also occur. When GERD occurs, patients must follow the doctor’s instructions to take regular medication for treatment, such as rabeprazole, etc., and should not ignore the condition and delay treatment. Patients must consult a physician before using the medication and use the medication under the guidance of the physician.