Yes, it's true. Putting raw undiluted essential oil on your skin is a disaster. I put grapefruit oil and orange oil in the bath, BIG MISTAKE. It burned my skin and actually left welts. Couldn't wash it off very easily either. I also made the bitter error of putting tea tree oil directly in my ear canal for an infection. I was up all night with the burning pain. Couldn't wash that out very easily, none the less. Don't underestimate pure essential oil. Cheers
