Erythema in the esophagus is generally not serious and may be caused by inflammation of the esophageal mucosa or localized ulcers, which can be improved after dietary adjustment and symptomatic treatment. The mucosa of the esophagus is relatively fragile, and under the stimulation of food, tobacco and alcohol, the local mucosa of the esophagus may become inflamed or ulcerated, and the mucosa may become congested, and the erythema under gastroscopy is usually not serious. Biopsy of the lesion can be performed, and after a clear diagnosis, medications to protect the mucosa, such as aluminum sulfate gel, can be used as prescribed by the doctor. Diet, pay attention to light and easy to digest, do not overeat, eat less spicy and stimulating food, quit smoking and alcohol, pay attention to rest, reduce the stimulation of the esophageal mucosal lesions. Erythema in the esophagus is usually not serious, adjust the diet as well as follow the doctor’s prescription medication, after the treatment of repeat gastroscopy. null