ethyl chloride spray

Sensitization

In sensitization, compounds within an requisite oil cause an activation of the immune system. The ensue is a touch dermatitis. At the first exposure, usually nothing happens. In subsequent exposures, reactions occur. Reactions can be in the form of a rash, sneezing, shortness of breath or hives. Fragrance allergy is the most coarse cause of cosmetic touch dermatitis. The most sensitizing component of generally used requisite oils is cinnamic aldehyde from cinnamon oil. Eugenol in clove oil is also sensitizing. Other requisite oils that pose a lesser risk consist of tea tree, lemongrass and ylang ylang. It is foremost to remember that any concentration of an oil may sensitize skin in a person with a genetic pre-disposition. Allergic reactions such as this usually build in people who already manifest allergic reactions of one kind or another-asthma, eczema, and nasal allergies. How would you treat a skin sensitization reaction? You might try one of the anti-inflammatory requisite oils like Roman chamomile or lavender in a 10% dilution.

If person knows they have sensitive skin, a patch test should be done first. Dilute the requisite oil to double the concentration to be used and put it on an adhesive bandage. Place the bandage on the person's forearm and leave in place for 12-24 hours to assess any adverse reactions.

Some causes of sensitization:

o Adulterants in an oil

o Some reactions can take years to build up

o Taking several medications at the same time may show a sensitivity to requisite oils

o Sometimes a compound of a chemical and an requisite oil can trigger an allergic reaction (for example spraying the orchad with a pesticide then using an requisite oil on the skin)

o Interaction of the requisite oil with residues of synthetic, petroleum-based personal care products-Compounds found in hand creams, mouthwashes, shampoos, antiperspirants, after-shave lotions and hair care products

Benzalkonium chloride Sodium lauryl sulfate Propylene glycol Aluminum salts Methylene chloride Methyl isobutyl ketone Methyl ethyl ketone
Phototoxicity

Phototoxicity is an interaction in the middle of a component in an requisite oil, the skin, and ultraviolet photons resulting in a skin reaction. These reactions can vary from pigmentation of the skin to severe full-thickness burns. The most coarse phototoxic agents are psoralens and furanocoumarins. Their chemical structure absorbs the energy from Uv rays (sunlight or tanning beds) and then releases the energy in a burst to surrounding skin cells resulting in brown spots or burns. usually retention away from the sun for 12 hours after application is adequate to forestall these reactions. It is sometimes said that all citrus oils are phototoxic, but this not true. When the citrus oils are steam distilled, none are photo-toxic. However, distilled citrus oils are rarely used in aromatherapy because they are less aromatic and don't have the same therapeutic qualities as the expressed citrus oils do. The steam distilled citrus oils are in general used for flavorings.

The coarse requisite oils considered phototoxic include: bergamot, lime, bitter orange, lemon, rue, angelica root, petitgrain, rue and grapefruit. Some authorities also consist of lemongrass, cumin, fennel, anise, and verbena absolute on the list. The lowest of the feet is one of the safest and most efficient places to use requisite oils. Agreeing to Tisserand and Balacs in requisite Oil Safety, the expressed oils of mandarin, sweet orange, tangelo and tangerine are not phototoxic. This is due to the quenching effects of other compounds, especially sesquiterpenes that make the uncontrollable furanocoumarins behave. Myrrh is a exquisite example. It contains at least ten types of furanoid compound (20-27%)-more than any other oil, yet it is not phototoxic. In old times, they unquestionably used myrrh oil on the skin daily without sunburn reactions.

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