Diagnosed as flat erosive gastritis, need to actively cooperate with the doctor’s treatment, common treatment methods for general treatment, drug treatment and so on. 1. General treatment: improve the eating pattern, quit smoking, quit drinking alcohol and drink less strong tea, coffee, etc., eat less spicy and stimulating food, eat more fresh vegetables, and stop taking unnecessary non-steroidal anti-inflammatory drugs, such as aspirin, as prescribed by the doctor. 2. Medication: If there is a combination of Helicobacter pylori infection, you can take anti-Hp, bismuth-containing four drugs combined program, such as omeprazole, clarithromycin, amoxicillin, bismuth potassium citrate. Drugs that inhibit gastric acid secretion such as ranitidine and omeprazole can be taken, and drugs that protect the gastric mucosa such as aluminum thioglycollate and magnesium aluminum carbonate can be taken. Patients should actively cooperate with the doctor’s treatment, do not self-medication, so as not to delay the condition or adverse reactions.