In observation group , Calcichew D3 tablets and acupoint catgut embedding were applied ; Shenshu ( BL 23 ) , Ganshu ( BL 18 ) , Jiaji ( EX-B 2 ) and Weizhong ( BL 40 ) etc. were selected at acute stage ; Shenshu ( BL 23 ) and Ganshu ( BL 18 ) etc. were selected at remission stage , once every half a month and 6 months treatment in all .
