Is there anything I should watch out for?
Most topical and inhaled essential oils are generally considered safe. You should never take essential oils by mouth unless you are under the supervision of a trained professional. Some oils are toxic, and taking them by mouth could be fatal.Rarely, aromatherapy can induce side effects, such as rash, asthma, headache, liver and nerve damage, as well as harm to a fetus.Oils that are high in phenols, such as cinnamon, can irritate the skin. Add water or a base massage oil such as almond or sesame oil to the essential oil before applying to your skin. Avoid using near your eyes.Essential oils are highly volatile and flammable so they should never be used near an open flame.Animal studies suggest that active ingredients in certain essential oils may interact with some medications. Researchers don’t know if they have the same effect in humans. Eucalyptus, for example, may cause certain medications, including pentobarbital used for seizures and amphetamine used for narcolepsy and attention deficit hyperactivity disorder to be less effective.