The duration of nebulization treatment needs to be determined according to the condition, usually 3-5 days is enough, 1-2 times a day, with an interval of 4-6 hours or more, and 10-15 minutes a time is appropriate. When patients suffer from respiratory diseases, coughing, coughing sputum, sticky sputum, not easy to cough up, and the application of drugs is less effective, it is recommended to use nebulized inhalation, which has the effect of diluting sputum, reducing inflammation and humidifying the airway, especially for children. However, the nebulization time is not the longer the better, each time the time to 10-15 minutes is appropriate, too long easy to produce irritation to the respiratory tract mucosa. During nebulizer inhalation treatment, patients are advised to sit in an upright position and keep breathing calmly. If symptoms of coughing aggravated by nebulization occur, treatment should be stopped as soon as possible and the physician should be consulted to adjust the medication. In addition, after nebulization patients must clean their faces, cough up sputum, rinse their mouths, and take a short rest before eating.