Acute gastroenteritis in children is considered to be related to bacterial infection, viral infection and non-infectious factors, and can be treated by giving anti-infectious drugs, probiotic drugs and anti-diarrhea drugs. 1. Bacterial infection: If the child eats food contaminated by bacteria or drinks raw water, it will stimulate the mucous membrane of the gastrointestinal tract and trigger acute gastroenteritis. Antibacterial drugs such as cefixime can be given with the doctor to effectively inhibit the inflammation, thus treating the child’s discomfort. 2. Viral infections: If the child’s resistance is poor, it will lead to rotavirus, norovirus stimulation of the gastrointestinal tract, triggering acute gastroenteritis. Viral infections have no specific treatment, can cooperate with the doctor actively bifidobacteria and other regulating gastrointestinal flora, while diarrhea is serious can be given montelukast to stop diarrhea, protect the gastrointestinal mucosa. Help relieve symptoms. 3. Non-infectious factors: If the child’s acute gastroenteritis is caused by eating cold, acidic, overheated food. Can cooperate with the doctor to give antidiarrheal, protect the gastrointestinal mucosa of drugs, such as montelukast for treatment. It is recommended that the child seek medical attention in case of acute gastroenteritis. All of the above medications should be used under the guidance of a doctor to avoid self-medication.