In the acupuncture group , acupuncture was applied at three-nose points [ Yingxiang ( LI 20 ) , Shangyingxiang ( EX-HN 8 ) and Yintang ( GV 29 ) ; Cuanzhu ( BL 2 ) was added for frontal headache ] and three-back points [ Dazhu ( BL 11 ) , Fengmen ( BL 12 ) and Feishu ( BL 13 ) ] , once every day .