Infants with fever can generally turn on the air conditioner, but it should be noted that the room temperature should not be too low, and air circulation should be maintained. Infants in fever, if the surrounding environment temperature is too high, but will affect the child’s heat dissipation, so it is appropriate to open the air conditioning. But the air conditioning temperature can not be too low, so as not to catch a cold baby cold, so that the fever symptoms further aggravated, the general room temperature is maintained at 26 ~ 27 ℃ is appropriate. In addition, we should pay attention to open windows and ventilation, so that the indoor air circulation. Infant fever is caused by a variety of reasons, may be the surrounding temperature is too high or the baby crying and other emotional changes caused by physiological fever, but also may be pneumonia, colds and other causes of pathologic fever. Parents should pay attention to monitor the baby’s temperature at any time, symptomatic heat treatment at the same time, need to consult a doctor in time to check the cause of fever, and then targeted treatment.