Esophagitis is an inflammation of the esophagus and one of gastroesophageal reflux disease. Gastroesophageal reflux disease is a symptom and/or complication caused by the relaxation of the lower esophageal sphincter and the reflux of stomach contents into the esophagus. Gastric contents include gastric acid, pepsin, and some patients also mixed bile. These corrosive liquids can produce burning sensation and mucosal damage in the lower part of the esophagus. According to the degree and scope of mucosal damage, they can be divided into the Los Angeles grade A, Los Angeles grade B, Los Angeles grade C, and Los Angeles grade D of esophagitis, of which grade A is lighter and grade D is heavier. The treatment of esophagitis includes: 1. lifestyle adjustment, pay attention to calm the heart, chew slowly, avoid spicy and irritating food, avoid anxiety and depression, increase exercise and lose weight. 2、 Proton pump inhibitors, such as omeprazole, rabeprazole, pantoprazole and lansoprazole, can be used to inhibit gastric acid. 3、 Drugs regulating gastrointestinal peristalsis include mosapride, cinapride, motiline, etc. 4、 Mucosal protective agents, such as magnesium aluminocarbonate, aluminum hydroxide and sucralfate, can be used for mucosal protection, and most esophagitis can be controlled through the above comprehensive treatment.