Edema and congestion of the esophageal mucosa is caused by esophagitis. Esophagitis (esophagitis) is an inflammation of the superficial or deep tissues of the esophageal mucosa due to abnormal irritation, resulting in edema and congestion of the esophageal mucosa. These stimuli include stomach acid, bile from duodenal regurgitation, strong alcohol, peppers, too hot vegetable soup, too hot tea, etc. It can be divided into primary and secondary esophagitis. There are many causes of esophageal inflammation; such as severe vomiting, long-term placement of a nasogastric tube or taking aspirin, strong acids and bases, non-steroidal anti-inflammatory drugs or patients receiving chemotherapy, radiation therapy or patients with reduced resistance to tuberculosis or Candida or viral infections leading to esophagitis. Prevention: 1, remove the cause of the disease to give soft liquid food, forbidden to feed coarse, hard, dry, powder and other irritating food. 2, anti-acid antiemetic oral aluminum hydroxide per kg of body weight, 0.1 to 0.3 mg, or magnesium oxide 0.2 mg. If the antacid effect is not good, can be oral metacyanidine guanidine, 5-10 mg per kg of body weight, 2 times / gl. vomiting, oral gastric reanimation, 0.2-0.5 mg per kg of body weight, 2 to 3 times / day. 3, antibacterial anti-inflammatory intramuscular injection of penicillin, streptomycin, 2 times / day; dexamethasone, 0.125-1.0 mg per kg of body weight, 1 time / day. In case of fungal infection, inject amphotericin B, 0.5 mg per kg body weight, once every other day.