My transplant team advised me against ingesting essential oils but said nothing about using them topically or diffusing them. I sometimes struggle with a stiff, aching neck that Tylenol won’t touch but have found some relief with Panaway and Copiaba applied topically with almond oil. I also diffuse lavender and peppermint as a sleep aid. I’m only 5 months post kidney transplant so I appreciate you sharing this information.