1.Keep the airway open. 2.No oily face cream should be applied before aspiration, and wash your face immediately after aspiration to reduce the amount of medicine that may be absorbed through the skin. 3. It is best to inhale the medicine in a quiet state. And teach the child to do deep breathing to increase thoracic mobility and lung capacity. For crying, uncooperative children, inhalation nebulizer treatment after sleep can be used, thus more conducive to nebulizer inhalation, so that the child’s respiratory tract treatment to achieve better results. 4.Patients with a lot of sputum and sticky sputum should be closely observed when doing nebulizer treatment to prevent the relatively sticky sputum plugs from absorbing water and increasing in volume during nebulizer treatment and the patient coughing up sputum untimely causing sputum asphyxia, so be cautious when treating patients with relatively poor response and poor coughing ability. It is better to aspirate sputum before or after nebulizer inhalation treatment. 5.Coughing of patients during nebulizer treatment will reduce the deposition of drugs in the lungs, so patients are generally not encouraged to cough during nebulizer treatment. Encourage patients to cough after nebulization, or let them do the “ha-ha” action or some cough variability action if some patients cannot finish coughing. 6.When nebulizer treatment, patients should be encouraged to breathe normally and intermittently with deep inhalation. 7. Pay attention to the child’s face and breathing during the nebulizer inhalation process. 8. In order to avoid adverse reactions during nebulizer inhalation, especially when inhaling glucocorticosteroids, and to prevent the drug from entering the eyes, the mouth should be rinsed after inhalation.