Under the guidance of the doctor, the child needs to be given symptomatic treatment after a clear diagnosis, including nebulized inhalation medication to resolve phlegm, and nebulized drugs can be chosen such as budesonide and terbutaline. Nebulized inhalation is a localized method of drug delivery, which has a quicker onset of action and fewer side effects, and is especially suitable for infants and children with coughing phlegm. In addition, yellow pus sputum may be caused by bacterial infection, which needs to be treated with antibacterial drugs. If it is a viral infection with thin white sputum, the child can be treated with antiviral drugs, and the choice of proprietary Chinese medicines include Pudilan Anti-inflammatory Oral Liquid and Seasonal Antiviral Combination.