Acupuncture com bined with auricular point sticking group ( group A ) : acupuncture was applied at Guanyuan ( CV 4 ) , Zhongji ( CV 3 ) and Zigong ( EX-CA 1 ) , once daily ; auricular point sticking was applied at Spleen ( pi , CO13 ) , Endocrine ( neifenmi , CO18 ) , Unterus and Kidney ( shen , CO10 ) , t he plaster was changed once a week .