Children can sleep in an air-conditioned room when they have a fever. If a child has a fever during the hot summer months, the ambient temperature in this case is too high for the child’s body temperature to decrease, so the ambient temperature can be properly controlled by turning on the air conditioner. Parents should pay attention to the fact that children’s thermoregulatory centers are not fully developed, and children’s body surface area is relatively large, so their body temperature is easily influenced by the external environment temperature. When opening the air conditioner need to pay attention to the temperature of the air conditioner, while avoiding direct blowing. 1, pay attention to the temperature: the air conditioning temperature is not easy to be too low, it is recommended to maintain at 22 ℃ -26 ℃, while the children in the various rooms do not have a large temperature difference, if the frequent in and out of the temperature difference between the rooms, may aggravate the fever; 2, avoid direct blowing: when the children sleep air conditioning wind do not blow directly on the skin surface, and try not to too close to the air conditioner, so as not to cause a cold, aggravating the fever. Parents note that even if the indoor air conditioning, but also regularly open the windows to keep the indoor air circulation and fresh air. Most fevers in children are caused by bacterial or viral infections, and if the windows and doors are closed all the time, the lack of indoor air circulation can cause a large number of bacteria or viruses to multiply, which is not conducive to recovery from the disease. In addition, children should pay attention to monitoring their body temperature while they have a fever. If the temperature does not exceed 38.5℃, try to choose physical cooling by drinking more warm water, applying antipyretic patches and wiping the child’s body with warm water. If the child’s body temperature does not drop after physical cooling, but continues to rise, the child can be treated with oral antipyretic drugs. At the same time, we should actively look for the cause of the fever, so as to provide targeted treatment.