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
Excluded expelled and suspended are words which are used in context to people who are kept away from a system (school, college, office, priviledge). The term excluded means denial of access. It can be temporary or permanent.