A randomized controlled study involving 60 participants found that application of a cream with a 3% concentration of marjoram, black pepper, lavender, and peppermint resulted in improved pain tolerance and increased mobility relative to the control group. Read more here.
M.-C. Ou, Y.-F. Lee, C.-C. Li, and S.-K. Wu, “The effectiveness of essential oils for patients with neck pain: a randomized controlled study,” J. Altern. Complement. Med. N. Y. N, vol. 20, no. 10, pp. 771– 779, Oct. 2014.
The use of aromatherapy and massage has been found to reduce the use of analgesia and anesthesia for women in labour. Read the abstract here.
Dhany AL, Mitchell T, Foy C. Aromatherapy and massage intrapartum service impact on use of analgesia and anesthesia in women in labor: A retrospective case note analysis. The Journal of Alternative and Complementary Medicine. 2012;18(10):932-938.
A triple-blind, placebo-controlled clinical trial investigated the effects of geranium essential oil on anxiety in the healthcare setting. Absorbent patches with three drops of geranium oil were placed inside of patients’ oxygen masks for 20 minutes daily. Geranium oil significantly decreased anxiety in patients who received it.
Reference: Shirzadegan R, Gholami M, Hasanvand S, et al. Effects of geranium aroma on anxiety among patients with acute myocardial infarction: A triple-blind randomized clinical trial. Complement Ther Clin Pract. 2017;29:201-206.