Three-month-old babies should not blow against a fan, especially do not set the fan close to the baby blowing. The baby’s pores open up more easily, and it is easier for the baby to get cold when blowing against a fan. If the weather is hot and you need to turn on the fan in order to avoid prickly heat caused by sweating, you need to pay attention to the intensity and distance of the fan. The best fan is oscillating head, blowing intensity and fan gear should not be high, do not blow directly at the baby, do not be too close to the baby, if too close, the intensity is too large, will lead to the baby blowing wind and get cold. And be careful not to let the baby in the environment of hot and cold, also easy to get cold. Once the baby cold appeared running watery nose, nasal congestion, sneezing and other symptoms, must go to the hospital in time to seek medical treatment.