My sister in law's cat had been sick and getting worse for a long time. She loves shit like essential oils or any fad health thing that is affordable. After spending a bunch of money at the vet with no good results her vet started in on environmental factors. She lives in a van and drives around the U.S. In a van you are going to soak 24 hours a day in what ever you put in your environment. Anyway, she laid off the oils and the cat got better. I can think of more than one person I suspect is fucking themselves up on essential oils, eating em bathing in em. Not a dab behind the ear and stuff but going through large quantities a month. I don't trust that the chemical used to refine them are safe or in the quantities advertised or even that some of these oils should be consumed in significate quantities. Mostly I think it's an easy way to avoid the hard work of changing your habits, diet, getting some exercise or living a self examined life.