If the baby has a fever repeatedly, first measure whether the temperature is low or high. Generally, the range of low fever is between 37.5-38 ℃, and that of high fever is above 38.5 ℃. If the child has a low fever, physical cooling can be used. Physical cooling has the following methods, such as warm water bath. A warm water bath for the child can quickly cool down. The temperature of warm water bath should not be too high or too low. 39-40 ℃ is appropriate. Wipe your palms, feet, armpits or thigh roots with a wet towel. Another way, if there is an ice bag, let the child pillow ice bag and cold water bag. If you have antipyretic patches, you can also apply antipyretic patches on your child's forehead, temples, armpits, and thigh roots, which can also help your child cool down. If the child has a high fever and the temperature exceeds 38.5 ℃, he can take merlin or Tylenol. These two antipyretics are often used by the child. If the effect is good, you can use either of them selectively. Through these methods, if the child still has recurrent fever, he or she should actively take the child to the hospital to find out the cause of the fever. Because repeated fever may be caused by virus or bacterial infection, it is better to go to the hospital for a simple blood routine examination to make a clear diagnosis and take corresponding treatment under the guidance of the doctor.