Effect of aromatherapy with peppermint, ginger, and lavender on postoperative nausea severity after oral surgery under general anaesthesia: A single-blind randomized controlled trial

This study indicated that aromatherapy with peppermint, ginger, and lavender significantly improved patient satisfaction and severity of postoperative nausea after oral surgery under general anaesthesia. Therefore, given the benefits of aromatherapy, it would be advantageous to consider a combination of measures that include aromatherapy, as one of the multimodal antiemetic measures. This trial was registered at the Japan Registry of Clinical Trials (jRCTs: 01121002).