Bronchitis and asthma are two different diseases, treatment and prognosis of the disease, not to be confused. Bronchitis is an inflammation of the mucous membrane of the trachea, which can be caused by pathogenic infections, allergies and physical and chemical stimuli, and the symptoms are mainly coughing and coughing up sputum. Treatment is mainly symptomatic, cough is obvious, can use cough suppressant drugs, such as Pentoxyverine, compound methoxonamine, etc., phlegm is difficult to cough out, can use aminobromine hydrochloride, bromhexine, etc., for phlegm treatment, most of them can be cured. Asthma is a complex, genetic predisposition of the disease, the essence of the airway chronic non-specific inflammation, at present, there is no clinical cure for asthma, but standardized use of medication, asthma can be better controlled, part of the control of patients with good, can be discontinued.