Fragrance oils have been used for thousand of years to lubricate the skin, purify infectious air and repel insects. Early Greek and Roman Olympic athletes rubbed these oils on their skin before and after competition to prepare and massage muscles. In the late 1930s, a French chemist dipped his burned hand into a container of lavender and the pain and redness disappeared quickly.

Aromatherapy surged in the 1980s with the popularity of "natural," non-toxic healing methods that cost less than conventional medications and produced fewer side effects. Practitioners insisted aromas could heal wounds, stimulate the immune system, cure skin disorders, improve circulation, relieve pain, reduce swelling and even improve memory.

Advocates say fragrances influence mind over body as they stimulate odor-sensing nerves that result in impulses sent throughout the body. These responses exert an effect on the body. Aromatherapy blends well with sports psychology by helping put athletes in the right state of mind.

"Everything may be in order physiologically for the athlete, but if the mind is not straight, the athlete will not perform optimally," said sport psychologist Terry Orlick in the book, "The Ergogenics Edge."

Those with skin allergies should test a small drop on the inside of the elbow and wait 24 hours to see if a reaction occurs. Avoid aromatherapy during pregnancy. Infants and young children are especially sensitive so keep away from their faces. Do not use peppermint on children under the age of 30 months.