For patients with gastroesophageal reflux disease, precautions are as follows: 1. It is recommended to improve lifestyle habits, and lifestyle changes are the basis for the treatment of GERD. Patients should avoid full meals, and each meal should preferably be at seven or eight minutes full. They should also avoid high-fat foods, as well as quit smoking and alcohol, and reduce the intake of foods that can easily cause reflux, such as chocolate, onion, mint, and coffee; 2. It is best to elevate the head of the bed when sleeping, avoid eating three hours before going to bed, and weight loss is recommended for obese patients. Obesity increases the intragastric pressure and the pressure gradient in the esophagus, while the clearing function of the esophagus also decline and gastric emptying is weakened; 3. Avoid long-term use of drugs that tend to cause reflux, such as progesterone, theophylline, and valium. GERD is a chronic disease that requires maintenance treatment from the perspective of symptom control and prevention of complications. Patients who have a second attack after the first symptomatic attack and stop taking medication need maintenance treatment as needed under the guidance of a specialist. Patients with combined alarm symptoms, such as painful swallowing, dysphagia, bleeding stools, weight loss, or anemia, need to be seen by a specialist promptly for further examination to clarify the cause. For patients with untreated or recurrent gastroesophageal reflux, psychological and psychiatric factors need to be considered. In conclusion, patients with gastroesophageal reflux need to be treated with diet and medication so that the symptoms can be well controlled.