Condition analysis: Coughing has always been bad, usually seen in respiratory diseases, such as chronic bronchitis, bronchiectasis, etc. These chronic diseases need to be treated with anti-inflammatory drugs. When persistent cough occurs, patients usually need to undergo chest imaging examinations and routine blood tests to determine the cause, and choose a treatment plan based on the specific cause. In addition, cough symptoms can also occur in this new coronavirus-infected pneumonia. Therefore, when cough symptoms occur during the epidemic, an epidemiological history investigation is also required.