Essential oils are definitely wonder oils that can treat many ailing conditions. They bring about a miraculous cure when applied on body parts or inhaled through the nose. They can treat and alleviate viral infections, skin conditions, pain and aches, symptoms of various chronic illnesses etc. They also calm an individual’s mental state, promote cell regeneration and relieve stress, anxiety and pain – physical, psychological and emotional.
Toxic essential oils: Though essential oils can do all these, one has to remember that they are potent compounds that are highly concentrated. Some essential oils can be toxic to the human body. When used in massage therapy or ingested internally, they can produce hazardous and allergic reactions, resulting in fatal conditions. There are a list of pure essential oils which are not used in aromatherapy owing to their ill nature. Some oils carry a high risk of oral or dermal toxicity and hence no essential oil should be taken internally without guidance from a qualified and licensed medical practitioner. Some oils need to be diluted for practical use or to avoid side effects like skin irritation.
Below is a list of essential oils that are harmful and should be avoided in aromatherapy:
1. Sweet Birch oil: This oil has the same ingredient found in drugs like aspirin (methyl salicylate) and hence should be avoided. If you are already on aspirin, then, using this oil could mean an overdose.
2. Bitter Almond oil: Cyanide or Prussic acid is the main constituent of bitter almond oil. Just like the cyanide, taking small amounts of the oil can have lethal effects.
3. Calamus oil: Though the oil is used topically for a lot of ailments like headaches, vertigo and nerve problems, oral intake of it can be dangerous. It has asorone which has carcinogenic properties and can result in convulsions, kidney or liver damages.
4. Camphor oil: Camphor oil is a single compound monoterpene which is toxic to the nervous system, causing mental confusion, nausea and vomiting if taken internally. However, the oil is used in treatment of nasal congestion, chest problems and in pain relief.
5. Tansy oil: Tansy oil can be fatal to anyone. It contains thujone, a highly poisonous substance which causes convulsions, uterine bleeding, vomiting, respiratory problems and cardiac arrest.
6. Mustard oil: Mustard oil contain allyl isothiocyanate which is a toxic skin and mucus membrane irritant.
7. Pennyroyal oil: The herb is used in treatment of irregular menstrual cycles, PMS etc. But the oil, which is toxic, is an abortifacient that can result in lung and liver damages.
8. Wormseed oil: Earlier wormseed oil was used to kill round and hookworms in children and adults. But later it was found out that the oil caused liver and kidney damages, suppression of heart beat, neurotoxicity and general toxicity in the body.
9. Wintergreen oil: Like the Sweet Birch oil, this too contains methyl salicylate which is similar to aspirin. Though it is used in relief of pain and aches due to arthritis or rheumatism, it is highly toxic and can be a poisonous skin irritant.
10. Savin oil: Savin or Juniperus sabina is toxic due to the presence of sabinene, sabinol and sabinyl acetate, which are skin irritants and abortifacients.
11. Wormwood: With thujone, neurotoxin and convulsant as active ingredient, wormwood is abhorred by aromatherapists due its abortifacient properties and absinthe constituents.