Fever is caused by an increase in body temperature due to an increase in heat production and a decrease in heat dissipation as the body temperature regulating point moves up. By sweating, excess heat can be taken away from the body and can lower the body temperature. If the fever does not sweat, indicating that the symptoms have not improved, other methods can be used to help reduce fever, specifically the following: 1, pay attention to hydration: when the fever does not sweat, other ways of cooling should be taken, the patient can drink more warm water or warm juice, through the way of urination, take away the excess heat in the body, to achieve the purpose of reducing body temperature. 2, warm water wipe: patients in the fever does not sweat, you can use warm water wipe the neck, armpits, elbow fossa, groin and popliteal fossa and other large blood vessels through the skin surface, through the evaporation of excess water on the skin surface, take away the excess heat in the body, to achieve the purpose of cooling. 3, the fever temperature should be high timely medical care: when the patient fever does not sweat, and persistent fever more than 38.5 ℃, in the auxiliary physical cooling premise still does not reduce fever, not blindly take antipyretic drugs, should be timely medical examination, laboratory blood tests to clarify the presence of viral infections, after identifying the cause of fever, should be under the guidance of the doctor symptomatic treatment.