If a patient has a cough or fever, it is often a manifestation of inflammation of the respiratory system, so the patient is usually seen in the respiratory department. The more common clinical diseases with cough and fever as the main manifestations are often infectious diseases of the respiratory tract, such as colds, acute upper respiratory tract infections, and infectious diseases of the upper respiratory tract such as pharyngitis, as well as acute and chronic bronchitis, pneumonia and lung abscess, patients can have symptoms of cough and fever, so patients must go to the respiratory department. The doctor will perform relevant tests according to the specific situation, such as performing routine blood tests and chest radiographs to further clarify the diagnosis. If the patient is seen at night and there is no respiratory physician on duty, he or she can be seen in the emergency department, where the emergency physician can also perform initial management of these diseases.