Aromatherapy may promote relaxation and help relieve stress. It has also been used to help with anxiety, insomnia, and to ease pain during menstruation, labor, and childbirth. Therapeutic massage with essential oils may help with pain from osteoarthritis and other conditions. But there is little scientific evidence that aromatherapy effectively prevents or cures illness.

Practitioners of aromatherapy are not specially licensed in the United States. A wide range of licensed health professionals (such as massage therapists, nurses, and counselors) may have experience and training in aromatherapy. It is important to talk with your medical doctor to see whether aromatherapy may be helpful and safe for your specific health condition.

Do not swallow the oils used in aromatherapy. Many of the oils are potent and can be dangerous if taken internally (swallowed).

Some oils are dangerous for children. Some oils cause rashes. And some can interfere with a child's hormones, causing problems like abnormal breast growth. Nor should anyone use oils near the eyes or mouth, because irritation of the skin and membranes may occur.

People with certain chronic illnesses or conditions should not use aromatherapy without first consulting a doctor. These illnesses and conditions include:

• Lung conditions such as asthma, respiratory allergies, or chronic lung disease. Oils may cause airway spasms.
• Skin allergies. Some oils may cause skin irritation, especially in the membranes of the eyes, nose, and mouth.
• Pregnancy. Some oils (such as juniper, rosemary, and sage) may cause uterine contractions.

Talk with your doctor about any complementary health practice that you would like to try or are already using. Your doctor can help you manage your health better if they know about all of your health practices.