Coughing and coughing after extubation of pneumothorax may be caused by upper respiratory tract infection, bronchitis due to drainage of pneumothorax intubation, or due to the lack of wound healing. 1. caused by upper respiratory tract infection: it is recommended to go to the hospital for nebulization, dilution of sputum to promote the discharge of sputum, oral phlegm and cough medication for treatment. 2. tracheitis: belonging to the tracheitis caused by pneumothorax intubation and drainage, excessive secretion of phlegm in the trachea leads to coughing wound with sound after pneumothorax extubation. 3. Wound not healing: coughing after extubation is considered to be wound not healing, which is a phenomenon that may occur for a short period of time after the operation, and it is recommended to actively anti-inflammatory treatment and combining with wound dressing change treatment. Other conditions may also have led to pneumothorax extubation cough wound sound, should be timely medical timely diagnosis and treatment. It is recommended that patients eat a light diet and avoid strenuous exercise during the recovery period.