Gastrointestinal flu is mainly a disease caused by coxsackievirus and other enteroviral infections, often with gastrointestinal symptoms such as fever, nausea and vomiting, abdominal distention and diarrhea, and sometimes with bacterial infections. Clinical treatment is mainly symptomatic and supportive. Patchouli Oral Liquid can be used, which is convenient and effective, while large amounts of fluids need to be supplemented to correct and prevent dehydration and electrolyte disturbance. Some respiratory viruses, such as influenza caused by the influenza virus, can also present gastrointestinal symptoms in addition to respiratory symptoms, requiring antiviral treatment such as oseltamivir. For gastrointestinal colds with more serious diarrhea and easily combined with bacterial infections, some antibacterial and anti-inflammatory drugs such as norfloxacin, levofloxacin and ciprofloxacin can be used appropriately. Patients with fever can use some antipyretic drugs, such as acetaminophen or ibuprofen. Chinese medicines are very effective in relieving gastrointestinal colds, such as Huo Xiang Zheng Qi Oral Liquid, which we are familiar with everyday, can relieve wind and cold externally and remove dampness and stagnation internally. If the patient has severe diarrhea and shows signs of dehydration, such as dry mouth and decreased blood pressure, timely rehydration is needed. Oral rehydration salts can be chosen for mild to moderate dehydration, while intravenous rehydration is needed for severe dehydration and timely correction of hypotension. At the same time, attention should be paid to reducing the burden on the stomach and intestines, and a light diet is preferable, so that the stomach and intestines can recover their functions before starting a normal diet. The treatment of gastrointestinal flu is mainly based on rest and symptomatic treatment. In addition to medication, you should eat more fresh fruits and vegetables, pay attention to daily life conditioning, develop good eating habits, do not eat cold drinks or leftovers, keep indoor air circulation, avoid abdominal cold when using air conditioning in summer, and reduce the occurrence of gastrointestinal flu.