Bronchitis is a common respiratory disease in children with a high prevalence, occurring throughout the year and peaking in the winter and spring. The cause is a variety of bacteria or viruses or Mycoplasma pneumoniae, or a combination of infections. The main symptom of bronchitis is a cough that starts as a dry cough and gradually turns into coughing sputum, or yellow sputum if the child has a bacterial infection. In addition to cough, there is often varying degrees of fever, runny nose, and loss of appetite, and some children may experience wheezing. Most children are mild and are treated and cared for at home with medication. Symptomatic treatment is the preferred method; generally, Western cough syrup with fewer side effects should be chosen (e.g. Ambroxol oral solution, Guaifenesin syrup, etc.); Chinese cough syrup is also the usual method (e.g. Pediatric Lung Fever and Asthma Oral Solution, Pediatric Cough Relief Oral Solution, etc.). At present, nebulizer inhalation therapy is also a good method for treating bronchitis cough. Nebulization has a comprehensive effect of anti-inflammation, cough, asthma and expectoration; the drugs are inhaled hormone (budesonide) plus inhaled bronchodilator (terbutaline or salbutamol) plus inhaled mucolytic agent (acetylcysteine). Antibiotics are required for combined bacterial or Mycoplasma pneumoniae infections. While giving the child medication on time, it is important to keep the room warm and ventilated with a certain amount of humidity in the air; feed the child with small and frequent meals, giving a light, easily digested and absorbed semi-liquid or liquid food; home care such as turning and patting the child’s back to promote smooth discharge of secretions is especially important.