Table of Contents
Pain Research and Treatment
Volume 2016, Article ID 8158693, 13 pages
http://dx.doi.org/10.1155/2016/8158693
Research Article

The Effectiveness of Aromatherapy in Reducing Pain: A Systematic Review and Meta-Analysis

1Global Neuroscience Initiative Foundation, Los Angeles, CA, USA
2California University of Science and Medicine, School of Medicine, Colton, CA, USA
3Neurological Institute, Cleveland Clinic, Cleveland, OH, USA

Received 1 September 2016; Accepted 7 November 2016

Academic Editor: Giustino Varrassi

Copyright © 2016 Shaheen E. Lakhan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. Aromatherapy refers to the medicinal or therapeutic use of essential oils absorbed through the skin or olfactory system. Recent literature has examined the effectiveness of aromatherapy in treating pain. Methods. 12 studies examining the use of aromatherapy for pain management were identified through an electronic database search. A meta-analysis was performed to determine the effects of aromatherapy on pain. Results. There is a significant positive effect of aromatherapy (compared to placebo or treatments as usual controls) in reducing pain reported on a visual analog scale (SMD = −1.18, 95% CI: −1.33, −1.03; ). Secondary analyses found that aromatherapy is more consistent for treating nociceptive (SMD = −1.57, 95% CI: −1.76, −1.39, ) and acute pain (SMD = −1.58, 95% CI: −1.75, −1.40, ) than inflammatory (SMD = −0.53, 95% CI: −0.77, −0.29, ) and chronic pain (SMD = −0.22, 95% CI: −0.49, 0.05, ), respectively. Based on the available research, aromatherapy is most effective in treating postoperative pain (SMD = −1.79, 95% CI: −2.08, −1.51, ) and obstetrical and gynecological pain (SMD = −1.14, 95% CI: −2.10, −0.19, ). Conclusion. The findings of this study indicate that aromatherapy can successfully treat pain when combined with conventional treatments.