Gastritis includes acute gastritis and chronic gastritis, and the treatment of both includes causative treatment and symptomatic treatment. 1. Acute gastritis: there are many causes of acute gastritis, such as severe trauma, surgery, the use of non-steroidal anti-inflammatory drugs, etc. To treat acute gastritis, we need to actively remove the cause of the disease and treat the primary disease, in addition, we can use drugs to inhibit the secretion of gastric acid, such as omeprazole, and gastric mucous membrane protectant, such as bismuth potassium citrate, to promote the repair of the gastric mucous membrane and to stop the hemorrhage. 2. Chronic gastritis: For Hp-related gastritis, quadruple therapy can be used to eradicate Hp, such as omeprazole, bismuth pectin, metronidazole, clarithromycin, etc.; drugs to protect gastric mucosa and improve gastrointestinal dynamics, such as domperidone, etc., can be used to alleviate the symptoms of abdominal pain and acid reflux. It is recommended that patients with gastritis consult a doctor in a timely manner, follow the doctor’s instructions for treatment, and do not use medication privately, so as not to cause adverse consequences.