In A Nutshell * Cloves contain eugenol, a plant compound with anesthetic and anti-inflammatory effects similar to ibuprofen, making them a promising natural pain reliever. * Strongest evidence comes from dentistry: clove oil and gels ease toothache, reduce pain from injections, and even outperform some conventional anesthetics in children. * Beyond dental use, studies suggest clove oil may boost the effectiveness of lidocaine during childbirth, fight bacteria, support liver function, and aid blood sugar control. * Safety matters: culinary use is safe, but concentrated clove oil or extracts can cause irritation, allergic reactions, or serious side effects at high doses—especially...