Esophagitis can be classified into four levels of severity: grade A, B, C, and D, with grade A being the mildest and grade D the most severe. For patients with grade A esophagitis, it is recommended that they pay attention to their diet and medication. Dietarily, it is advised that patients consume easily digestible meals, eat smaller portions more frequently, and avoid overeating. Medicinally, options include acid inhibitors, mucosal protectants, and medications that reduce stomach acid. The treatment course is 2 to 4 weeks, and if symptoms can be controlled, the dosage may be appropriately reduced. Clinically, esophagitis is relatively common with typical symptoms being nausea and heartburn, especially heartburn, which is the most frequent. This presents as a burning pain in the esophageal and anterior chest area, generally related to eating, and usually occurs after meals.