A child with a simple high fever will not be burned out. It is mainly determined after analyzing the cause of the fever, if the fever is caused by meningitis or other serious neurological infections, it may easily lead to encephalitis, which may affect the development of intelligence in severe cases. If the fever is caused by a simple viral infection and there are no other uncomfortable symptoms except high fever, most of the fever will not have any effect on the body. Therefore, when the fever is high, it is necessary to give symptomatic treatment to reduce the fever in time and observe the mental state of the child, if the fever subsides and the mental state is good, there is generally no need to worry too much, if the fever persists even if the fever subsides and the mental state is still depressed, it is necessary to go to the hospital in time for medical treatment.