Belching is a common symptom of dyspepsia or gastritis, and can also be seen in diseases such as gastric ulcer or duodenal ulcer. A gastroscopy and carbon 14 blow test are needed to analyze the cause of belching. If it is simple indigestion, it can be treated with lactase, gastrointestinal tablets and dimethicone oil tablets, which can improve quickly. If it is gastritis, try domperidone tablets and metformin tablets. If gastric ulcer or duodenal ulcer is caused, it is mostly accompanied by Helicobacter pylori infection, so you can do quadruple therapy with sodium rabeprazole enteric capsules, bismuth pectin, flavopiridol and erythromycin, and if necessary, add mosapride tablets to improve gastrointestinal motility. Usually pay attention to limit the intake of spicy foods, and those who have bad habits such as smoking and drinking need to quit smoking and drinking in time.