Toothache. Clove oil and eugenol, one of the chemicals it contains, have long been used topically for toothache, but the U.S. Food and Drug Administration (FDA) has reclassified eugenol, downgrading its effectiveness rating. The FDA now believes there isn't enough evidence to rate eugenol as effective for toothache pain.
- Syzygium aromaticum
- EWG Rating: 0