Low body temperature after fever reduction is related to the application of antipyretic drugs and sweating to reduce body temperature. It is recommended to replenish fluids in time and pay attention to keep warm. In addition, if the body temperature continues not to rise need to consider the infectious factors, it is recommended to consult a doctor in time. 1. Timely replenishment of fluids: the need to drink more warm water, do not apply fever-reducing drugs, to prevent excessive sweating and electrolyte disorders. 2. Pay attention to warmth: increase clothing to keep warm, you can also use heaters, air conditioners, etc. to raise the temperature of the room. 3. Seek medical attention: If the body temperature does not rise, this should be taken seriously, and it is recommended to seek medical attention in time, because fever is mostly caused by various viruses, bacteria and other pathogenic microorganisms infections. In the case of severe infection may also cause sepsis, or infectious shock, resulting in insufficient blood perfusion, hypothermia phenomenon, need to be sent to the doctor in time for systematic treatment.