Gastritis and gastroesophageal reflux disease are relatively common in clinical settings. Generally, medications that reduce acid production, protect the mucous membrane, and improve gastrointestinal motility can be chosen for treatment. Of course, dietary advice includes consuming clean, easily digestible foods, cultivating good living and eating habits, and avoiding overeating and binge drinking. Gastritis is more commonly seen clinically, with most patients exhibiting symptoms of abdominal pain and bloating. Esophagitis primarily presents with nausea, belching, and burning pain, leading most patients to seek treatment from a gastroenterologist. The fastest diagnosis primarily relies on gastroscopy, which can reveal congestion and edema of the esophageal and gastric mucosa, and even the formation of erosion and ulcers, ruling out diagnoses like esophageal or gastric cancer. Therefore, the treatment of gastritis and esophagitis mainly relies on medications, which are selected after a complete gastroscopy. The typical course of treatment is about four weeks. If symptoms can be controlled, the dosage can be gradually reduced to maintain the minimal effective amount. (The use of medications should be conducted under the guidance of a doctor.)