a combination of orange, lavender, ylang ylang and vetier

Other essential oils in aromatherapy like Melissa, and bergamot are used to help fight depression. Some oils that help tension and anxiety are rose, neroli and sandalwood. For nervous fatigue and migraines you can use geranium along with basil for relief
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http://www.myessentialoilsite.com/stress-relief-from-aromatherapy.html#more-146

http://www.ehow.com/how_4582556_reduce-stress-essential-oils.html?ref=fuel&utm_source=yahoo&utm_medium=ssp&utm_campaign=yssp_art

http://www.itsmynature.net/Articles/EOStressRelief.html

http://www.aworldofaromatherapy.com/essential-oils-stress.htm

Diffuser - Add drops to Aromatherapy Diffuser to promote a relaxed environment.
Nose - Inhalant- 2 drops in palms. Cup hands over nose and inhale for 1-2 minutes. Wear under nose and on ear lobes.
Bath - Exfoliate skin’s surface prior to applying 2 drops with ¼ tsp. Gel. Apply mixture over tense areas. As tub fills add 1 oz. Liquid Soap and ½ C. Solar Sea Salts and soak 20 min.
Body - Mix 4 drops to 1/2 tsp. Lotion, use as a daily moisturizer. Wear on wrists and on earlobes as a daily perfume.

also can use a light bulb diffuser or a vaporizer