Viral infections in children usually refer to symptoms such as fever and malaise due to infection with a pathogenic virus, and there are many reasons for the recurrence of the disease. Repeated fever is a common feature of viral infection induced diseases. The natural course of viral infection is about 1 week, relying on the child’s own resistance to cure, and until the virus is cleared, it may continue to have pathogenic effects, thus affecting the child’s thermoregulatory center and causing the child to have repeated fevers, and only after the viral infection is completely cured will the effect of the virus on the child’s thermoregulatory center subside and the fever can really Therefore, when a child has an infection, because of the presence of the pathogen, repeated fever is a reasonable manifestation, parents do not need to be particularly worried, this is not a manifestation of the child’s disease aggravation or recurrence, but a normal and reasonable pathological process, no special antiviral treatment is needed, only the symptomatic antipyretic when necessary, to maintain a reasonable body temperature can be. In addition, if a child is exposed to a virus that causes reinfection after the disease has subsided, recurrent fever problems may also occur. Therefore, it is important to clean up the child’s environment in a timely manner, and it is best to disinfect bathing utensils and toys used by the child when he or she was sick so that he or she is not exposed to the pathogen again. Recurrent fever is a normal manifestation of viral infections and parents need not worry too much about it. With the right treatment, the child will recover quickly. Recurrent fevers caused by viral infections are common and are related to the child’s weak resistance and repeated exposure to pathogens.