Figure 1. Effective changed from 2 weeks to 36 weeks of ICS+LABA group (A), ICS+LTRA group (B), ICS alone (C), and LTRA alone (D). ICS: inhaled corticosteroids; LABA: ICS+ long-acting bete2-agonist; LTRA: Leukotriene receptor antagonists.

In conclusion, our results suggest that the four treatment regimens for CVA children are effective. This article believes that ICS+LABA is the first choice within 8 weeks of diagnosis, and ICS+LATR treatment can be selected if the child cannot master the drug absorption technology well. After 8 weeks, it can be reduced to ICS alone to control CVA for at least 36 weeks based on the remission of symptoms in children.