The baby bronchitis well occasionally cough, such as the general condition is good, most of the recovery period, is a normal phenomenon, such as cough for a longer period of time, or even more than half a month or gradually aggravate the performance of the need to consult the hospital in a timely manner, to clarify whether there is a recurrence of the situation. When the baby suffers from bronchitis, airway secretions gradually increase, resulting in cough aggravation, after effective treatment, when the condition is gradually under control, airway secretions gradually reduce, cough gradually reduce, enter the recovery period, but the airway mucosa has been damaged, the need for a gradual recovery process, during which the baby will still have a slight cough performance. If the baby cough symptoms gradually aggravate, or fever, wheezing, dyspnea and other manifestations, and even coughing for a longer period of time, often suggests that the disease is recurring, it is recommended that timely pediatric consultation, a clear diagnosis, to take targeted treatment.