Nocturnal acid reflux is mainly common in gastroesophageal reflux disease and duodenal ulcer. Patients may carry out life conditioning or medication under the guidance of professional doctors to relieve the symptoms for the cause. Common causes 1, gastroesophageal reflux disease: excessive secretion of gastric acid at night, relaxation of the lower esophageal sphincter, damage to the esophageal mucosa due to excessive contact with or exposure to gastric juice in the lumen of the gastroesophagus, regurgitation of gastric contents into the mouth is often acidic, causing the performance of acid reflux, accompanied by symptoms of heartburn; 2, duodenal ulcer: related to abnormal secretion of gastric acid, Helicobacter pylori infection and other factors, can appear the symptoms of acid reflux at night . Therapeutic measures 1. Daily conditioning: Do not lie down immediately after eating, and try to stand for 20-30 minutes. You should avoid eating within 2-4 hours before bedtime, and you can also raise the head of the bed by 15-20 cm to prevent acid reflux. 2. Diet: If you have nighttime acid reflux, you can drink a small amount of water or eat soda crackers to neutralize the stomach acid and reduce the discomfort. The diet should be light and easy to digest, avoid spicy and greasy food and overeating to avoid stimulating the gastric mucosa; 3, medication: under the guidance of a professional doctor, choose proton pump inhibitors such as pantoprazole and sodium rabeprazole enteric capsules to treat GERD, or H2 receptor blockers such as ranitidine and famotidine to inhibit nighttime gastric acid secretion.