Acupuncture
OtherThe patient takes a sitting or lateral position. The following acupoints are selected Baihui (GV20), Yintang (EX-HN3), Zhongwan (CV12), Bilateral Neiguan (PC6), Bilateral Zusanli (ST36), Bilateral Sanyinjiao (SP6), Bilateral Gongsun (SP4), Bilateral Pishu (BL20). Electroacupuncture is applied at bilateral Sanyinjiao (SP6) and bilateral Zusanli (ST36) by connecting them to an electroacupuncture device. The needles are retained for 30 minutes.