Sweating from cold medicine is caused by the action of drugs, because the main ingredients of cold treatment drugs contain acetaminophen, such as sensitization, aminogastrin capsules, etc. Acetaminophen used in cold medicine is the role of antipyretic and analgesic, can relieve the common cold or influenza caused by fever, headache, limb aches and other symptoms, it is a cyclooxygenase inhibitor, can be selectively inhibited by the hypothalamus thermoregulatory center prostaglandin synthesis, causing peripheral vasodilatation resulting in sweating, so as to achieve the role of antipyretic, so take cold medicine general sweating can reduce fever Therefore, cold medicine can reduce fever after sweating. But it should be noted that most cold medicines contain acetaminophen, so several cold medicines should be avoided together to avoid excessive sweating causing deficiency, and should also be avoided in excess, otherwise it will aggravate the liver damage. After taking cold medicine and sweating, you should change damp clothes in time, replenish water, eat lightly and pay attention to rest in order to avoid getting cold again.