Bronchitis is a common respiratory tract infectious diseases, the main symptoms of cough, cough sputum, asthma, in Chinese medicine, belongs to the Chinese medicine “cough”, “croup”, “wheezing” and so on. Cough: the main symptoms are cough, cough and phlegm, asthma. 1. Cough: the main symptoms are recurrent cough, coughing, phlegm, cough due to phlegm, phlegm viscous or thick lumps, white or gray, every morning or after eating, coughing and phlegm, sweet and greasy food aggravation, chest tightness and epigastric plumpness, vomiting and poor food, body fatigue, loose stools. 2. Croup: the main symptoms are phlegm and saliva in the throat (abnormal phlegm, excessive production of saliva), wheezing chest fullness (chest fullness and discomfort), but can not sit down, coughing phlegm viscous and difficult to get out, or white foamy sputum, greenish dark color, the onset of the disease is more urgent, often come and go, before the onset of the self-consciousness of the nose, pharynx, eyes, ears itchy, sneezing, nasal congestion, sneezing, chest stuffiness, followed by a rapid onset of seizures. 3. Wheezing: the main symptoms are wheezing and chest fullness and stuffiness, or even chest fullness, cough, phlegm, sticky white, vomiting, vomiting and vomiting, with vomiting, less food, sticky mouth and no thirst. If you have cough, cough sputum, asthma and other symptoms, you should go to the hospital in a timely manner, under the guidance of the doctor to identify the causes of active treatment, so as not to delay the condition.