The main symptoms of bronchitis in young children are cough with mucus sputum and in some cases wheezing, commonly known as howling wheeze. Severe children may also have a fever, and since bronchitis is part of a respiratory infection, there may be symptoms of oxygen deprivation, such as poor spirits, vomiting, and diarrhea. Treatment begins with the right cause. If the bronchitis is caused by bacteria, use antibiotics. Viral causes, such as syncytial virus caused bronchitis will use antiviral drugs. Secondly, nebulization, 2-3 times/day, can help to dilute and expel phlegm. Finally, symptomatic medications can be given orally, such as cough suppressants for cough and probiotics for diarrhea. Finally, auxiliary methods can be used to promote the expulsion of phlegm. Usually 7 days can be improved.