Try not to use a hair dryer with cold hands and feet in a three-month-old baby, as it may heat up the baby’s skin, increasing the chances of dangers such as dry and chapped skin and burns. Three-month-old babies with cold hands and feet may be affected by the environment or have a cold fever: 1. If the baby’s face is a little white, head to the quilt or top shrinking, touch the tip of the nose is also a little cold, consider that the environment temperature is too low, or wear too little clothing, cover the quilt is too thin and other factors lead to the cold. Parents are advised to control the indoor temperature at 22~24℃ and increase or decrease the baby’s clothing according to the temperature. 2. If you see that your baby’s lips are red, his/her breathing is accelerated or he/she is depressed, consider that your baby has a fever. Parents are advised to measure the baby’s temperature immediately, and according to the elevated temperature, give physical cooling or medication to lower the temperature, such as ibuprofen, to improve the symptoms of cold hands and feet. Because the baby’s skin is relatively soft, so to prevent the hair dryer to cause the skin dry chapped or burn the risk of occurring, try not to use the hair dryer on the baby’s hands and feet to warm up, the use of medication need to be under the guidance of a doctor.