It is recommended to go to the respiratory department in time according to your specific conditions after a long time of continuous dry cough. If this persistent dry cough occurs in young people, it may be related to their own smoking, chronic airway infection, airway hyperresponsiveness, etc. After routine examination, central antitussive drugs can be used, as well as local atomization, anti allergy drugs, and bronchospasm drugs can be used to gradually treat dry cough. If you are a middle-aged or elderly person, you must pay attention to the possibility of screening lung tumors, especially endobronchial carcinoma, which will cause frequent dry cough due to cancer stimulation.