Nebulized inhalation is used to treat respiratory diseases and is a common and effective means to stop coughing, calm asthma, reduce inflammation and dissolve phlegm. How long nebulization takes depends on the severity of the disease and the cause of the disease, clinically for bronchial asthma, you can choose to nebulize 2-3 times a day, each nebulization time can reach about 5-10 minutes. For common acute bronchitis, you can choose to nebulize 2 times a day for 5-10 minutes each time. For acute pharyngitis, edema is more obvious, you need to use glucocorticoid nebulization inhalation to reduce edema, you can choose 3-4 times a day according to the situation, each time can reach 5-10 minutes.