Acute gastritis is mostly caused by alcoholism, irritating food or medication. In the treatment, we should first stop any diet or medication that is irritating to the stomach, rest in bed, fast for a short time, and take oral H2 blockers such as famotidine, ranitidine, or proton pump inhibitors such as omeprazole. It can inhibit gastric acid secretion, and the burning sensation will disappear quickly in 1-3 days. For abdominal burning caused by gastric ulcer, in addition to the above-mentioned drugs to inhibit acid secretion for 4-6 weeks, drugs to protect gastric mucosa, such as aluminum thioglycollate, aluminum hydroxide gel, etc., should be applied orally, and for patients with H. pylori infection, treatment to eradicate H. pylori should be carried out at the same time.