Chrissy Wildwood, author of Aroma Remedies,
suggests a mixture of chamomile,
clary sage, eucalyptus, lavender, lemongrass, peppermint, rose otto, rosemary or sweet marjoram.
Additionally, a randomized controlled trial in 2013
suggested that
clary sage S. sclarea essential oil may be useful — more so than lavender Lavandula angustifolia [Mill.]