Children coughing to do nebulization generally do not have side effects, nebulization inhalation therapy is the use of nebulization of the device will be dispersed into tiny droplets or particles of medication, so that it is suspended in the gas, and with the breath into the respiratory tract, respiratory diseases, cough preferred mode of treatment. Nebulized inhalation can reach the oral cavity, pharynx, trachea and bronchus directly, and can directly reach the mucous membrane of the airway to exert its corresponding therapeutic effect. Due to the nebulized inhalation of commonly used drugs are bronchodilators, glucocorticoids, mucolytics, some parents worry that nebulization will affect the growth and development of children, in fact, nebulized inhalation of hormones only act locally, and the amount of absorption is very small, and generally does not cause systemic adverse reactions, as long as the nebulization of the face in a timely manner after the cleaning, clean up the oral cavity, will avoid the drug residue in the oral cavity.