It is useful to do nebulization for acute bronchitis. Nebulized drugs include glucocorticoids, beta agonists and some sputum diluting drugs, which can play a local anti-inflammatory, reduce congestion, relieve coughing, coughing and even chest tightness, wheezing symptoms, facilitate the discharge of sputum, reduce the clinical manifestations of bronchitis and shorten the course of the disease. Acute bronchitis nebulization is generally not the first choice of treatment, only when the phlegm is sticky and not easy to cough out the choice of nebulization treatment. The actual bronchitis is going to be determined by whether or not the total number of white blood cells and neutrophils are elevated to decide whether or not to add antibiotics, together with oral sputum-thinning drugs, and if necessary, if there is wheezing, then consider adding nebulization therapy. Therefore, nebulization treatment is suitable for acute bronchitis when the sputum is sticky and not easy to be expelled, as well as when it is accompanied by wheezing symptoms.