近年来,随着对支气管哮喘的慢性炎症病理学基础的认识进一步加深,儿童哮喘的治疗方案也相应进行了调整[1]。但因β2受体兴奋剂对支气管平滑肌具有较高选择性,仍被选为控制儿童哮喘急性发作的首选药物之一[2,3]。全乐宁雾化液是一种直接局部应用于气道β2受体兴奋剂,我们用该药? In recent years, with the further understanding of the basis of chronic inflammatory pathology of bronchial asthma, the treatment of childhood asthma has also been adjusted accordingly [1]. However, β2 receptor agonists have been selected as one of the first choice drugs to control acute exacerbation of childhood asthma due to their high selectivity for bronchial smooth muscle [2,3]. Quanlein spray solution is a direct local application of airway β2 receptor agonist, we use the drug?