Marigold Tagetes (Tagetes Erecta)
It doesn't have much of a smell, and is much more useful for its inherent qualities. A healing oil, very effective in treating infection.
When used in creams, marigold can help heal broken skin or irritated areas.
Blend it into a massage oil or pop a few drops into the bath to ease a cough or chest infection. It's also equally effective if you put a few drops in an oil burner.