The treatment of gastritis differs according to its urgency, as follows: 1. Acute gastritis: general treatment includes bed rest, removal of the cause of the disease, giving a light liquid diet or fasting. Vomiting and diarrhea should be supplemented with electrolytes and water in a timely manner. The treatment includes giving gastric mucosal protective agents and acid suppressants, antibiotics for bacterial infections; special treatment includes high doses of sensitive antibiotics for acute purulent gastritis, and surgery when the lesion is locally abscessed and medication is ineffective; 2. Chronic gastritis: general treatment includes abstaining from smoking and alcohol, avoiding aspirin, anti-inflammatory pain, erythromycin and other drugs, eating a regular diet, avoiding overheated, salty and spicy foods. The treatment of chronic gastritis includes abstaining from smoking and alcohol, avoiding the use of aspirin, anti-inflammatory pain, erythromycin and other drugs, eating a regular diet, avoiding overheated, salty and spicy foods, and actively treating chronic mouth, nose and throat infections. Drug therapy includes gastric mucosal drugs, such as bismuth citrate and aluminum thioglycollate; adjusting gastrointestinal motility drugs, such as domperidone; taking antibiotics, clarithromycin, etc. if found positive for Helicobacter pylori on gastroscopy; using drugs to reduce gastric acid, such as aluminum hydroxide, omeprazole, etc.; using painkillers, such as atropine, 654-2, etc.