Inflammation of the stomach and intestines can be improved by general treatment, medication, and rehydration therapy. Inflammation of the stomach and intestines refers to gastroenteritis, mostly caused by bacterial infections, which can be manifested as vomiting, abdominal pain and other symptoms, and usually requires temporary fasting, until the abdominal pain is relieved before eating a light liquid diet. If the infection is obvious, it is recommended to take Norfloxacin capsules, levofloxacin and other quinolones, or cephalosporins such as cefaclor, cefotaxime and other cephalosporins antimicrobial drugs treatment. At the same time, during the treatment period, patients may lose water and electrolytes due to diarrhea, vomiting and other symptoms, therefore, it is necessary to actively replenish electrolytes and water, through oral rehydration salts or intravenous rehydration can be reasonably replenished with potassium chloride, to avoid dehydration caused by water-electrolyte disorders and acidosis. Diarrhea can be treated with antidiarrheal drugs such as montelukast. In addition, the above drugs need to be taken strictly under the guidance of doctors after the cause of the disease is clear, and should not be used blindly to avoid causing adverse reactions.