Four-year-old baby fever in the middle of the night to make timely treatment measures, the degree of fever is high and low, need to look at the specific temperature performance: 1, if it is lower than 38.5 ℃, generally belongs to low fever, you can use physical cooling method, with warm water to scrub the baby’s hands, feet and forehead, the water temperature as far as possible to control in between 36-38 ℃, when the baby’s head sweat on it, after washing, to keep warm in time to prevent drying, and then let Baby then drink warm boiled water to prevent dehydration. 2, when the temperature reaches 38.5 ℃ or more, this time to pay attention to the home always have a little ibuprofen or Merlin and other western medicine to reduce fever medicine, in the physical cooling at the same time, to medication to reduce fever treatment, if the fever phenomenon occurs for several consecutive nights, it is recommended to go to the hospital for routine examination, for further treatment to prevent the deterioration of the condition, leaving sequelae.