The reason for the chronic gastritis is many, and there are different treatments according to different causes and different accompanying symptoms, so it is important to visit the hospital to clarify the cause and use the medication. The common clinical drugs include antacids, acid suppressants, gastric mucosal protectors, gastric motility drugs, digestive aids, etc. 1. antacids and acid suppressants: such as magnesium aluminum carbonate, omeprazole, pantoprazole, etc., which are often used in chronic gastritis with heartburn, acid reflux, epigastric pain and other symptoms; 2. gastric mucosal protectors: bismuth pectin, bismuth potassium citrate, aluminum thioglycollate, etc., which are often used together with acid suppressants and are seen in cases of excessive gastric acid or ulcers. ulcer, can also be used for bile reflux, bile neutralization; 3, pro-gastric power drugs: such as domperidone, for chronic gastritis with epigastric fullness, nausea, belching and other conditions of patients; 4, digestive drugs: such as multi-enzyme tablets and digestive enzyme preparations, for with low digestive function, loss of appetite and other conditions; 5, other drugs: such as vitamin B12 and folic acid, for atrophic gastritis with pernicious anemia. In addition, chronic gastritis is mostly accompanied by H. pylori infection, and the quadruple therapy of acid suppressant + gastric mucosal protector + two antibiotics is used clinically. Such patients can be clearly diagnosed by carbon 13 or carbon 14 breath test, and actively treated by medication under the guidance of a doctor.