A small amount of pneumothorax recovery can be within the tolerance level of the choice of gentle aerobic exercise, cough training, and can carry out pulmonary function exercises. 1. Aerobic exercise: exercise should not be too strenuous after recovery from pneumothorax, and it is not recommended to play basketball, soccer and other competitive sports to prevent reoccurrence of pneumothorax. You can choose jogging, yoga and other ways of training, each exercise time should not be too long, if you feel uncomfortable exercise immediately rest. 2. Cough training: you can do cough training according to the situation, first deep inhalation, after reaching a certain level of abdominal contraction, and then cough a few times. 3. Lung function exercise: after a small amount of pneumothorax recovery, in order to promote the recovery of lung function, you can choose to blow up a balloon or continuous deep breathing. To prevent pneumothorax, it is recommended to quit smoking and actively prevent and treat lung diseases. If chest pain or dyspnea occurs, consult a doctor.