Objective: To observe the effect of acupoint catgut embedding therapy on immune function of children with recurrent respiratory tract infection and its clinical curative effect. Methods: Seventy-two children with recurrent respiratory tract infection were randomly divided into observation group and control group. The observation group was treated with acupoint catgut embedding for 3 months,and the control group was treated with Pidotimod oral solution for 3 months. The levels of serum immunoglobulin Ig A,Ig...