The Comparative Study on the Efficacy and Safety of Single Acupoint and Matching Acupoints

Inclusion Criteria: 1. Be diagnosed as cancer and need to accept chemotherapy 2. The score of Karnofsky ≥70 3. Patients of either gender and age 18 years to 80 years 4. Patients receiving chemotherapy both outpatients and inpatients 5. Patients receiving chemotherapy regime with high risk of causing vomiting: cisplatin ≥60 mg/m2, or joint chemotherapy regime of Anthracyclines (Adriamycin≥ 40 mg/ m2 or epirubicin≥60 mg/m2), Dacarbazine or Carboplatin（area under the curve greater than 5mg/ml/min） 6. Life expectancy \> 6 months Exclusion Criteria: 1. To receive radiotherapy and chemotherapy 2. Gastrointestinal tumors 3. Patients with serious liver disease or abnormal hepatorenal function (Aspartate Aminotransferase, Alanine Aminotransferase , and Total Bilirubin are 3 times more than normal, blood urea nitrogen and Cr are 2 times more than normal) 4. Presence of cardiac pacemaker 5. Inflammatory skin reaction 6. Nausea and/or vomiting resulting from opioids or metabolic imbalance (electrolytic disturbances) 7. Patients unable to provide self-care or communication 8. Nausea and/or vomiting resulting from mechanical risk factors (i.e.,intestinal obstruction) 9. Patients with brain metastases or symptoms of intracranial hypertension 10. Nausea and/or vomiting resulting from other diseases(i.e.,sympathetic cervical dispositions, Meniere's syndrome) 11. Women in pregnant and lactating period 12. Refusal to sign informed consent, rejection of randomization into intervention groups.