Fever is one of the most common manifestations of childhood illness, in most cases, it is not necessary to go to the hospital, parents can also do some basic treatment, then when the situation, the need for hospital treatment? Look at the following points: 1, high fever of 39.5 ℃ or more. 2.Children can no longer drink water, or there are convulsions. 3.The child is poor in spirit, drowsy or not easy to wake up. 4.The child breathes with a throat wheezing sound. 5.The child’s breathing is accelerated after the cold (≥ 60 breaths per minute for small infants under 2 months, ≥ 50 breaths per minute for children between 2 months and 1 year old, and ≥ 40 breaths per minute for children between 1 and 4 years old), which may have triggered mild pneumonia. 6, the child’s breathing accelerated and appeared upper chest depression (refers to the lower part of the chest wall depression when the child inhales, which is due to the poor elasticity of the lung tissue and the effort of inspiration; if the child inhales only the soft tissue between the ribs or above the clavicle is sunken, it is not a chest depression). The presence of this feature indicates that the child has developed more pronounced dyspnea and may be suffering from severe pneumonia.