Fever of viral infection in babies is usually cured in a few days, mainly related to the type of virus, the severity of the disease and the individual factors of the child, and should be analyzed specifically, not a generalization. If the baby is ordinary influenza virus caused by fever, did not appear other complications, belong to the self-limiting disease, the general fever about 7 days can be self-healing, without special treatment. However, if the fever is higher or combined with other complications, it usually cannot be cured by itself. If the fever is caused by a specific viral infection or the condition is more serious and the fever lasts for a longer period of time, you should not wait for it to heal by itself, and need to apply antiviral medication as prescribed by the doctor in time to avoid delaying the time of treatment. When your baby has a fever caused by a viral infection, it is recommended that you take your baby to the pediatric internal medicine department of a regular hospital, where he or she will be examined by a professional doctor to determine the cause of the illness and then receive targeted treatment.