The number of days to cure EBV infection in children depends on the severity of the disease, treatment, and physical fitness, and cannot be generalized. EBV infection is a common and contagious disease that is spread mainly through saliva, mostly in young children, and is self-limiting. EBV infection has an incubation period, and generally no specific symptoms appear in the first 3 weeks after infection. If the child does not develop significant symptoms for about 3 weeks or if the symptoms are mild, the disease can be cured in about 10-14 days with symptomatic treatment. If the symptoms are more severe, such as high fever, pharyngitis, obvious swollen lymph nodes, or even neurological symptoms, the child needs to receive systematic antiviral medication at the hospital in time, and can usually be cured in 2-3 weeks, but the exact time varies from person to person. In daily life, parents need to pay attention to their children’s hygiene, cultivate the good habit of washing hands and bathing regularly. It is advisable to eat a light diet and avoid spicy and stimulating foods.