Gastritis is a common inflammatory disease, and patients with gastritis need to cooperate with regular dietary treatment while actively using drug therapy. Patients with gastritis should not eat spicy and irritating food, not hot, cold, pickled food, but easy-to-digest food, pay attention to small and frequent meals, regular diet, and not overeating. Regular diet requires a combination of drug treatment, commonly used drugs are mainly levofloxacin, amoxicillin, omeprazole, ranitidine, bismuth salicylate and so on.