Esophagitis does not usually heal on its own, but most can recover in about 1-2 weeks if treated aggressively and in a timely manner. Esophagitis is mainly caused by reflux of gastroduodenal contents into the esophagus, causing tissue irritation or damage, resulting in digestive inflammation of the esophageal mucosa, often manifested as acid reflux, heartburn, dysphagia, foreign body sensation in the pharynx, chest pain and other symptoms. Gastroscopy may reveal congestion and erosion of the esophageal mucosa, and in severe cases, complications such as esophageal stricture, ulceration, obstruction, perforation, bleeding, and malignancy may occur. Esophagitis is mainly treated with medications, such as antacids, acid suppressants, mucosal protectants and gastroprokinetic drugs, and in severe cases surgery needs to be considered, and most of them can be cured in about 1-2 weeks. During the treatment period, attention should be paid to adjusting the lifestyle and the usual diet structure, eating fewer meals, low-fat diet, focusing on a light, easy-to-digest diet, avoiding spicy and stimulating foods and sweet and greasy foods, quitting smoking and alcohol, drinking less coffee and strong tea, and avoiding bending over and other positions that can easily cause acid reflux.