Sweating after taking cold medicines may be related to the ingredients of cold medicines, which can replenish water in time to avoid dehydration caused by excessive sweating. Most cold medicines contain a certain amount of acetaminophen, which is a kind of antipyretic and analgesic medication with anti-inflammatory, analgesic and antipyretic effects. When taking this type of cold medicine after a cold, the phenomenon of sweating will occur after taking the medicine, this situation should pay attention to drink more hot water, timely replenishment of the body’s loss of water to prevent dehydration. Cold and flu patients should promptly use a clean hot towel to wipe the sweat on the body, so as not to get cold and aggravate the symptoms of cold and flu. Pay attention to rest, avoid staying up late, and eat a light diet. Cold and flu if the symptoms are more serious, it is recommended to consult a doctor in time, according to the doctor’s instructions to take, avoid self-medication.