You can have your own on line business doing this same thing.
Read this plan.

Order using the my doTERRA shopping site. You may place your order at retail pricing or enroll as a Wellness Advocate like I did and pay just $35.00 for your first year to obtain wholesale prices. Enrolling provides you with your own personalizable doTERRA sales and marketing website, complete with awesome educational materials in PDF format for ease of sharing. Use these single essential oils and blends of essential oils from so many common plants, both aromatically and topically for emotional, physical and spiritual enrichment. I suggest enrolling to obtain fabulous deals monthly! Order 125 point value PV of doTERRA wellness products per month at wholesale prices in a Loyalty rewards Program LRP and receive benefits galore, like free product of the month.
Build up your own collection of doTERRA CPTG essential oils and from toxic store bought household supplies to all natrual cleaning products, skin care lines and integrative grooming products made with certified pure and therpeutic grade essential oils and nutrual ingredients. Plus real 100% pure and medicinal grade essential oil of ginger. Your ow.n home based business and good digestion with ginger essential oil

These two links to this clinical publication of ginger and anethesia explains some concepts of aromatic science.
The_essential_oil_of_ginger_Zingiber_officinale_and_anaesthesia
https://www.researchgate.net/publication/228633937_The_essential_oil_of_ginger_Zingiber_officinale_and_anaesthesia