Diarrhea, vomiting, diarrhea and weakness may be related to acute gastroenteritis, food poisoning, gastrointestinal flu, electrolyte disorders, cholera, etc., and its treatment is as follows: 1. Acute gastroenteritis: mainly manifested as vomiting, loss of appetite, diarrhea, electrolyte disorders, can take levofloxacin lactate tablets, norfloxacin tablets, montelukast and other treatments under the guidance of physicians. 2. Food poisoning: food poisoning can also cause vomiting and diarrhea and general weakness, which can be improved by drinking water appropriately, and if necessary, gastric lavage and symptomatic treatment. 3. Cholera: It is an acute gastrointestinal infectious disease mainly caused by Vibrio cholerae, during the onset of the disease, there will be severe diarrhea and vomiting, dehydration, and weakness of the limbs. Usually need to cooperate with the doctor to use antibacterial drug treatment, such as doxycycline hydrochloride tablets, ciprofloxacin tablets, norfloxacin tablets and so on. Diarrhea vomiting and diarrhea weakness of the limbs of the patient, it is recommended to timely medical treatment, clear specific causes, and then under the guidance of the physician for treatment.