Chemotherapy-induced nausea and vomiting (CINV) is one of the most common and distressing side-effects among cancer patients undergoing chemotherapy. Despite steady progresses in antiemetic prophylaxis and treatment during the past decades, approximately half of cancer patients receiving moderately to highly emetogenic chemotherapy still experience significant nausea and vomiting. Considering the facts that CINV is difficult to be completely controlled by antiemetics along, healthcare professionals has explored the role of non-pharmacological interventions as adjunctive therapy for controlling CINV. Among which, auricular therapy (AT) is a promising approach but the evidence has still not been concluded.