After the fever is usually hot hands is better, this time that the peripheral circulation of the limbs is good, under normal circumstances, the body temperature is generally no longer rising, is conducive to cooling treatment. After a fever, the body temperature will generally go through three phases: rising temperature, persistent fever, and falling temperature. When the hands and feet begin to heat up, it means that the patient is in the sustained fever period. Body temperature rises to a certain extent will no longer rise, at this time the body heat production and heat dissipation function basically tends to balance, the fever is more stable, conducive to cooling treatment. If the hands are cold after fever, it means that the body temperature is in the stage of continuous increase, at this time, the body temperature is extremely unstable, unable to control the temperature drop, there may be a high fever does not go away. After the fever, we recommend that patients seek medical treatment in a timely manner to find the cause of the fever and target treatment.