Eugenia Caryophyllus THE CLOVE, A SPICE THAT CAME TO BE WORTH MORE THAN GOLD! Clove essential oil is one of the best treatments antiseptics and antibacterials that exist in nature. Also serves as a healing and analgesic, especially for spasms or dental pain. Not for nothing was there a time when this spice was worth more than gold. Before our era, in the distant China, the nobles chewed it so as not to offend the emperor with their bad breath.