Acmella oleracea is a remarkable medicinal and culinary herb, widely known as the "toothache plant" for its potent local anesthetic and analgesic properties. It is most notably used to relieve dental pain, treat oral infections, and manage inflammatory conditions. The flower heads produce a unique tingling, numbing sensation when chewed, attributed to the bioactive alkylamide spilanthol. Modern research has validated its traditional uses, revealing sophisticated mechanisms of