I have read and understand that most of the time when someone is sensitive to essential oils it is because of the chemical processing residues of low quality cheaply made oils, not actually the plant oils themselves. I am very sensitive and have found no irritation whatsoever with Young Living and other similar high-quality cold pressed oils that do not use chemical surfactants in the extraction processes. Additionally, many manufacturers incorporate high heat extraction methods which cause cellular degradation and mutations resulting in toxic by-products. Nowadays I only get migraines when people use those synthetic fragrance, neuro-toxic dryer sheets and Glade Plug Ins. ... View related article.