Patients in the fever, usually the body will appear reflexive regulation of body temperature state, this period will be cold sweat, do not worry too much, belongs to the normal body temperature recovery process, through the sweating of heat, so that the body temperature drops, to achieve the purpose of reducing fever. If the body temperature gradually returns to normal, no other fever-reducing methods can be used, just pay attention to care; if the body temperature does not drop after a cold sweat, medication can be used to reduce fever. If the body temperature drops significantly after a fever and cold sweat, patients should pay attention to keeping warm, dry the sweat with a towel in time, drink more warm boiled water or juice, and drink a little rehydration salt if necessary to prevent electrolyte loss and deficiency. Secondly, during the period of fever and cold sweat, patients should pay attention to bed rest, do not go out to blow the wind for a while, and do not go to a cold environment to avoid recurrence of the disease; avoid exertion during the fever, do not stay up late, check the blood routine if necessary, find out the cause of the fever, treat the cause, and follow up at any time. In addition, during fever and cold sweats, in addition to timely hydration to prevent dehydration, if the temperature does not drop, you can also take acetaminophen to reduce fever, and re-measure the temperature after two hours.