Norovirus infections generally heal themselves in about 1 week, but there is some individual variation. Norovirus is a virus of the genus Norovirus in the family of human cupaviridae, with rapid mutation, strong environmental resistance, low infectious dose, short incubation period, highly contagious and rapid transmission ability, and the whole population is generally susceptible. The incubation period of norovirus infection is 24-48 hours, most of the symptoms appear in 12-48 hours, mainly manifested as diarrhea or vomiting, usually in about 1 week symptoms will gradually reduce to disappear. Norovirus infection is a self-limiting disease, there is no vaccine or effective drugs, symptomatic treatment and supportive treatment are the main focus. In addition, the immune system in some patients can clear the virus and eventually achieve self-healing. During norovirus infection, patients need to pay attention to drink more water, light, easy to digest diet, avoid cold, spicy and other irritating food. If necessary, visit the hospital’s infection department or gastroenterology department.