In the catgut embedding group , the acupoint catgut embedding therapy was applied to Qugu ( CV 2 ) , Shenshu ( BL 23 ) , Zhibian ( BL 54 ) , Huiyin ( CV 1 ) and Sanyinjiao ( SP 6 ) , once every two weeks ; the treatment of 4 weeks made one session , and two sessions were required .