Gastritis is a very common type of inflammatory disease, and there are three main types of drugs used to treat gastritis, the first being antimicrobial drugs, commonly levofloxacin and amoxicillin. The second category is the drugs to stop acidity, commonly used are omeprazole and ranitidine. The third category is drugs to protect the gastric mucosa, and the representative drug is bismuth salicylate. Through medication, patients need to cooperate with regular dietary treatment in order to achieve a good treatment effect. The patient should pay attention to a light diet, not to eat spicy and stimulating food, not to eat raw and cold food, not to eat boiling hot food, to eat some easy to digest food, with drug treatment to achieve good therapeutic effect.