The baby viral infection fever can be seen in intracranial infection, respiratory infection and other diseases, whether hospitalization is needed, need to be evaluated by a specialist to determine, such as viral encephalitis and other hospitalization is recommended. 1. Intracranial infections: such as viral encephalitis, can be caused by enterovirus and other infections, clinical recurrence of fever, convulsions and depression and other symptoms, some of the babies in the reasonable use of antipyretic drugs after the drop in temperature is still not obvious. For this kind of disease baby is recommended to be hospitalized, so that physicians can observe the changes in the condition and rational use of medication. 2. Respiratory tract infections: such as respiratory syncytial virus, rhinovirus and other causes of acute upper respiratory tract infections, in the acute stage can appear high fever, such as the existence of poor treatment (such as ibuprofen and other antipyretic drugs use insufficient dose or use of observation time is not enough), you can continue to observe the time, no need to be hospitalized for the time being. If the fever does not subside after reasonable treatment, hospitalization is usually recommended for diagnosis. 3. Childhood emergency rash: Most common in infants and young children, the course of the disease may be repeated high fever, but usually good mental response. For this kind of babies can be first in the physician’s guidance under the reasonable use of drugs, home observation, such as the emergence of reasonable use of drugs after the high fever does not subside, convulsions or poor mental hospitalization is recommended, in order to facilitate the observation of the condition, and with other diseases to identify, and so on. It is recommended to actively consult a specialist to assess the condition and determine whether hospitalization is necessary, and follow the doctor’s instructions.