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 is not enough evidence to rate eugenol as effective for toothache pain.
Definition of exclude - deny (someone) access to a place, group, or privilege, remove from consideration Definition of exclude - deny (someone) access to a place, group, or privilege, remove from consideration
exempt - (of persons) freed from or not subject to an obligation or liability (as e.g. taxes) to which others or other things are subject; a beauty somehow exempt from the aging process; exempt from jury duty; only the very poorest citizens should be exempt from income taxes