Suspension refers to infusion therapy. Bronchitis patients generally do not need infusion, generally oral drug treatment can be, for the combination of cardiopulmonary basic diseases of the elderly or oral drug treatment effect is poor, can consider infusion treatment, general treatment 5-7 days, the more serious may be appropriate to extend the treatment time. Bronchitis patients generally do not need infusion therapy, generally through oral drug therapy, such as cough, phlegm, relieve bronchial spasm, while paying attention to rest, drink more water, light diet, the general condition can be significantly improved; Infusion treatment is mostly applied to the poor effect of drug treatment or the combination of cardiopulmonary basic diseases of the sick people, for intravenous infusion treatment usually need 5~7 days. Meanwhile, it is necessary to continuously observe the change of symptoms, and some patients with more serious conditions may need a longer period of time. Patients with bronchitis are advised to consult a doctor in a timely manner and follow the doctor’s instructions for active treatment.