The acupuncture group was treated with acupuncture at Yifeng ( TE 17 ) , Fengchi ( GB 20 ) , Lianquan ( CV 23 ) , Baihui ( GV 20 ) , Touwei ( ST 8 ) , Dicang ( ST 4 ) through Jiache ( ST 6 ) , Hegu ( LI 4 ) , Quchi ( LI 11 ) , and motor area on the affected side , and the needles were retained for 30 min .