In the acupuncture-moxibustion group , acupuncture was applied to Shenshu ( BL 23 ) , Pangguangshu ( BL 28 ) , Zhongji ( CV 3 ) , Guanyuan ( CV 4 ) and Shuidao ( ST 28 ) , and the warm moxibustion therapy with moxa stick was used at Shenshu ( BL 23 ) , Guanyuan ( CV 4 ) and Shenque ( CV 8 ) , once every day .