Shallow-acupuncture stimulation of ipsilateral Cuanzhu ( BL 2 ) , Sizhukong ( TE 23 ) , Sibai ( ST 2 ) , Dicang ( ST 4 ) , Jiache ( ST 6 ) , Yingxiang ( SP 9 ) , and bilateral Hegu ( LI 4 ) , Yanglingquan ( GB 34 ) and Xingjian ( LR 2 ) was administered for 30 min , once daily for one month .