Children infected with norovirus may cause viral gastroenteritis, usually no obvious specific symptoms, with the development of the disease, children may appear fever, nausea, vomiting, abdominal pain, diarrhea and other symptoms. Norovirus belongs to the intestinal viruses, children infected with norovirus usually cause symptoms of viral enteritis, generally no obvious specific symptoms in the early stage of the disease, with the development of the disease will be different degrees of fever, decreased appetite, nausea, vomiting, and other symptoms, and then there will be obvious intestinal reactions, such as watery or egg drop stools diarrhea, abdominal distension, abdominal pain and so on. Children should pay attention to rest, drink plenty of water to prevent dehydration, and take antidiarrheal agents such as montelukast to improve the symptoms as prescribed by the doctor. Meanwhile, parents should do a good job of monitoring the condition, and seek medical treatment once the condition continues to worsen.