Small airways generally refers to the small bronchial tubes, patients with serious obstruction need to be treated with medication or surgery according to the cause of the disease, to restore the small bronchial tubes to the goal of smoothness. 1. Drug treatment: different causes of bronchial obstruction require the use of different therapeutic drugs, for example, because of inflammation and infection caused by bronchial obstruction, according to the pathogens need to use sensitive antimicrobial drugs, such as penicillin, erythromycin, levofloxacin and so on; Then, for example, if severe obstruction of small bronchial tubes occurs because of bronchospasm, bronchodilators such as formoterol and salbutamol can be used. 2. Surgery: some people may have serious bronchial obstruction because of tumor compression, and they need to consider removing the tumor through surgery to relieve the compression, and according to the condition of the tumor, it is sometimes necessary to remove the involved bronchial tubes together. Severe bronchial obstruction can also be seen in bronchial asthma, emphysema, it is recommended that the patient consult the doctor in time, make a clear diagnosis, treat the cause of the disease, treat the symptoms, do not blindly use medication on their own, so as not to delay the condition.