Fever is a common symptom of childhood illness, and often young parents are overwhelmed and anxious when they encounter it. However, the confusion and anxiety bring about “hustle” and “anxiety”, which will not help the child’s condition. Therefore, the first thing parents should do in the face of a child’s fever is to stay calm and observe carefully. First, if the child’s skin feels hot to the touch, the first thing you should do is measure the temperature; second, measure the body temperature, the child’s quiet state, the axillary temperature is greater than or equal to 37.5 ℃ is considered fever; third, treatment: 1, to determine the child’s general condition, decide whether to immediately consult the doctor, the early warning indicators include: pale skin color; weak cry; reduced activity; reduced milk consumption, appetite (1) body temperature less than 38.5 ℃, consider reducing clothing, physical cooling (method: warm water bath, bathing parts including the axilla, neck, groin, N fossa and other large blood vessel distribution places, the cloth needs to be moist, in order to leave water traces in the bathing area as the standard, water evaporation can take away heat. (Standard, water evaporation can take away heat, conditions allow warm water bath once). (2) If the body temperature is greater than 38.5℃, over-the-counter antipyretics, including ibuprofen and acetaminophen, should be applied, and one antipyretic should be given according to the age according to the instructions, together with physical cooling. (3) Children within 3 months are recommended to use physical cooling methods to reduce fever and use antipyretic drugs with caution. 3.After 15, 30 or 45 minutes of the above treatment, the body temperature should be retested and gradually decreased. If the child sweats, the sweat stains should be wiped dry and kept dry. 4.Take timely medical consultation.