Coughs are referred to respiratory medicine because cough symptoms, for the most part, are caused by respiratory diseases. The common diseases are mainly bronchitis, asthma, and chronic obstructive pulmonary disease, although other diseases can also cause cough, like heart failure and gastroesophageal reflux, and this is mainly identified by the respiratory physician. The main thing to do when you go is to introduce the symptoms of cough to the doctor, as well as the accompanying symptoms, such as whether the cough has phlegm, whether there is no breath coming up, whether there is fever, whether there is a stuffy and runny nose or symptoms related to panic, palpitations, acid reflux, heartburn. The patient and the respiratory doctor will then determine whether the cough is related to respiratory disease or is caused by other diseases, and will recommend relevant tests. If it is a respiratory condition, it will be diagnosed and treated. If it is caused by other diseases, the patient will be referred to the relevant department for treatment.