Fever and cough are relatively common symptoms in children during growth and development. Children are especially prone to fever because their temperature centers are not well developed and their immune systems are not well developed. Fever is a protective reflex of the body. For example, during fever, children’s bodies produce antibodies against pathogenic bacteria and use white blood cells to engulf bacteria and viruses, while the detoxification of the liver is also enhanced. Coughing is also a reflexive action of the body to remove respiratory secretions or foreign bodies from the airway, so if the fever and cough are not particularly severe and do not interfere with normal life and the child’s mental state is relatively good, do not just take antipyretics or cough medicines. If a child’s high fever does not subside, the cough has affected sleep and life, and the fever and cough last for a longer period of time, parents must pay attention to this, indicating that the condition has worsened and that they should seek medical attention in a timely manner. The most common cause of fever and cough is respiratory tract infection. If a child’s fever does not subside, coughs for a long time or is not in good spirits and affects normal life, parents must go to a regular hospital to have the child diagnosed and treated.