Inhaled budesonide is a long-acting glucocorticosteroid, mainly used for nebulized inhalation in highly reactive airway-sensitive diseases. 2 ml of saline with 1 ml of budesonide, that is, half a dose, is usually used for children under 6 years of age, and each nebulization lasts 5-10 minutes, usually nebulized twice a day. For acute asthma can be nebulized once every half hour or one hour, 3 times in a row. For children over 6 years old, the dosage is generally taken as 2ml of saline with inhalation of budesonide 2ml, which is one, also nebulized 2 times a day for 5-10 minutes each time. At the same time, for children with obvious coughing and wheezing or tracheospasm, airway hyperresponsiveness disease, can be combined with bronchodilator drugs, such as commonly used salbutamol or terbutaline, with together with nebulized inhalation. One thing to be clear, budesonide for use in acute laryngitis in children, the drug effect is applicable to reduce the sensitivity reaction, but the onset of action is relatively slow, that is, in the nebulized inhalation 5-6 days to reach an effective, stable concentration in the respiratory tract to play a role in the acute phase within 1-2 will not play a significant role. So it is still debatable, but it is only recommended for chronic, such as the usual chronic asthma, cough and wheezing patients effective, the use of acute laryngitis should be cautious.