Marjoram is a widely used herb in folk remedies and cooking. As a stimulating diaphoretic it is often used in the treatment of colds and flu, its use here being similar to the use of Hyssop. The antiseptic properties give it a use in the treatment of mouth condidtions as a mouthwash for inflammation of the mouth and throat. It may also be used externally for infected cuts and wounds. The New Holistic Herbal by David Hoffmann Pg. 214