If you have pain in the esophagus when swallowing, you may have reflux esophagitis or acute injury to the esophagus. The main treatment is to do a gastroscopy first to clarify whether there is a new swelling in the esophagus, and if there is a new organism, a biopsy must be taken and sent to pathology to clarify the diagnosis before treating it symptomatically. If it is only caused by reflux esophagitis irritation, at this time, you can consider eating drugs that inhibit stomach acid, such as omeprazole or lansoprazole, and take them orally for about 1 month before going for a review. If it is due to a cut in the esophagus after eating, you can take oral medication to protect the gastric mucosa.