Bronchitis is a common lower respiratory tract infection in children, usually occurring in the winter and spring, and is usually a mixed viral bacterial infection. Once diagnosed, bronchitis requires aggressive treatment and generally does not heal on its own. Pediatric bronchitis usually starts rapidly and changes rapidly, so early medication is needed, otherwise it can easily develop into a chronic process, with chronic bronchitis and wheezing bronchitis, and in more severe cases, bronchopneumonia and bronchiectasis, and can also be complicated by otitis media, sinusitis, posterior pharyngeal wall abscess, peri-tonsillar abscess, or cervical lymphadenitis, laryngitis These are common complications. Therefore, once a child is diagnosed with bronchitis, he or she must be treated actively, especially for bronchitis with fever, yellow sputum, leukocytosis, and consideration of bacterial infection, appropriate antibiotics should be used in a timely manner, while symptomatic treatment should be given to stop coughing and dissolve sputum, and for bronchitis with severe wheezing, nebulization should be given as early as possible to cure the disease while trying to avoid complications. Once diagnosed, pediatric bronchitis must be actively treated, and it is not advisable to let the baby carry on, as it is generally not self-healing and can be combined with more complications.