The duration of pediatric bronchopneumonia is usually 10 days, depending on the cause, condition, and individual constitution, and cannot be generalized. Pediatric bronchopneumonia is mainly due to pathogenic infection of the respiratory tract. The common causative agents are mixed bacterial and viral infections, and most infections are normally due to viruses, and the self-healing time for viral infections is usually 10 days. If it appears as white mucous sputum, or accompanied by fever, headache, chest pain and other symptoms, it is usually acute bronchitis. The self-healing time of the patient is 5-10 days, and the duration of the disease can reach 21 days for those with poor physical condition. If symptoms such as coughing, fever, headache, etc. occur repeatedly after treatment and occur more than once a month, recurrent bronchitis is considered, and the course of the disease will reach about 3 months. Therefore, when a child has bronchitis, the first thing to do is to control the infection and antibiotic treatment is recommended. Secondly, symptomatic treatment is necessary, and nebulized inhalation of phlegm-suppressing drugs can be used.