Reducing gastric acid secretion can be done through dietary regulation, application of proton pump inhibitors, H2 receptor blockers and other methods. 1. Dietary regulation: reduce the intake of strong tea, coffee and spicy stimulating food. By reducing the stimulation of gastric mucosa, thus reducing gastric acid secretion. 2. Proton pump inhibitors: such as omeprazole. By inhibiting the proton pump, it inhibits the secretion of gastric acid. Adverse reactions are rare, long-term use should be regularly checked the gastric mucosa for tumor-like hyperplasia. 3. H2 receptor blocker: such as ranitidine. It can inhibit the secretion of gastric acid by blocking the H2 receptor. Adverse reactions are mainly mild diarrhea and constipation. The medication should be used according to the doctor’s prescription. If gastric acid secretion is excessive, good dietary and living habits should be adopted. If the condition worsens, it is necessary to go to the hospital in time and follow the doctor’s instructions for systematic treatment to prevent ulcer formation.