Inclusion Criteria:  Subjects who are scheduled to be admitted for chemotherapy administration and who will have at least one additional cycle of the same chemotherapy Chemotherapy regimens must include moderate and/or severe emetogenic chemotherapy  Exclusion Criteria:  Significant developmental delays that would prohibit participation Infection or severe dermatological condition of ear Uncontrolled or severe infection No implanted electrical device is permitted Pregnancy Severe cardiopulmonary disease Diagnosis of hemophilia or other bleeding disorders Diagnosis psoriasis vulgaris