Chills all over the body after a cold are a premonitory sign of fever. If the body temperature exceeds 37℃, you should use antipyretic drugs such as ibuprofen suspension and acetaminophen. In addition, you should use cold pellets or capsules to treat upper respiratory tract infections. During the treatment period, you should drink more water, take plant-based fiber supplements, and eat less spicy and stimulating food. If the symptoms of the cold are severe, you should go to the respiratory medicine department of the hospital for a detailed examination. Heavy colds need to be treated with fluids. During the treatment period, you must pay attention to rest and not to overexert yourself or stay up late.