Acupuncture at Zhongwan ( CV 12 ) , Daheng ( SP 15 ) , Sanyinjiao ( SP 6 ) and Taichong ( LR 3 ) , etc. was applied in the group A ; acupuncture at Baihui ( GV 20 ) , Fengfu ( GV 16 ) , Shenting ( GV 24 ) and Yintang ( GV 29 ) , etc. was used in the group B ; oral administration of estazolam tablets ( 1 mg each-day ) was adapted in the group C , all once a day for totally 30 days .