Good on the Oil of Oregano. I just added it to my home made solution that I use to keep a tooth issue under control. A friend too who had two major dental issues and two crowns still has pain in these areas. She is using the solution I use also which contains drops of Oil of Oregano. To my solution I also add Arnica tablets. Learning to be creative is what I have been working on for over 25 yrs. Improving all health takes research.