Infant bronchitis is divided into chronic bronchitis and acute bronchitis, different types of bronchitis symptoms and performance are different, mainly to cough, wheezing and other symptoms. 1. Chronic bronchitis: the patient will have a cough, mostly in the morning, sleep patients will also have symptoms, patients will also have symptoms of coughing sputum, cough sputum is mostly white foamy or plasma-like, the patient in the position change or get up will appear to stimulate sputum, and occasionally there will be a blood situation, there will be a significant wheezing, may also occur after the activity of the shortness of breath symptoms. 2. Acute bronchitis: patients with acute onset of disease, there will be irritating dry cough, after a period of time will turn into a persistent cough, morning and night sleep, cold, body activities, inhalation of cold air cough will be aggravated, the onset of the initial period of the patient will appear in a small amount of white mucus sputum. With the development of the disease, the sputum may turn into purulent sputum, yellow sputum or green sputum. If the patient is accompanied by bronchospasm, he may have different degrees of dyspnea, chest tightness and shortness of breath, wheezing and other symptoms. If the above symptoms occur, parents should take the baby to the hospital in time to seek medical treatment, after diagnosis and follow the doctor’s instructions for treatment, parents must not give the baby medicine, stop or change the medicine without authorization.