Essential oils used in aromatherapy can be used to soothe, refresh and relax people, indicates The University of Maryland Medical Center. Peppermint aids digestion and can reduce nausea. Rose and frankincense are sometimes used by midwives to alleviate fear during labor.
Aromatherapists use lavender, rose, orange, bergamot, lemon or sandalwood to ease tension and stress. Lavender helps both with relaxing people as well as helping them retain focus. Neroli oil may reduce blood pressure and anxiety among people preparing for medical procedures. The belief that aromatherapy works increases its effectiveness in those who practice it, according to the University of Maryland.