For chronic bronchitis, there is no cure because it is developed from acute bronchitis that does not heal, so it can only be controlled. For its control, the acute exacerbation period needs to first control the infection, timely oral antibacterial drugs, such as quinolones, macrolides. The other is cough expectorant treatment, strong cough suppressant are compound methoxynamine capsule, sulforaphane cough. The strong cough suppressants include compound methoxynamine capsule and sulforaphane cough. The phlegm-suppressing drugs include aminoglutethimide hydrochloride and myrtle oil. The other is the medicine to calm the asthma and antispasmodic, such as aminophylline, or long-acting β-diagonist, such as glucocorticoid inhalation and other drugs. In addition, it is necessary to quit smoking, strengthen resistance, and prevent colds. In case of recurrent respiratory infections, the body can also be strengthened by vaccination against Streptococcus pneumoniae.