Many people experience a lot of sweating and cold hands and feet after applying antipyretic drugs, which is related to body weakness caused by excessive sweating. In this case, it is necessary to keep warm in time. If excessive sweating causes electrolyte disorders and general weakness, it is necessary to replenish electrolytes in time, which can be taken orally with sugar saline. If the symptoms are more serious, it is necessary to go to the hospital for electrolyte tests and give intravenous fluids according to the situation. If the body temperature is low, you can apply hot towels or warm water bags to warm up the body in time, so that the body temperature can be controlled at 36-37℃. If the body temperature is too low, there is also some damage to the body. In addition, it is important to observe the change of body temperature so as not to cause more damage to the body due to high and low temperature. At the same time of treatment, be sure to improve the relevant examination to find out the cause of fever and treat the symptoms.