Aromatherapy : Treating Diseases - Canker Sores
Apply antiseptic oils of myrrh (Commiphora molmol), tea tree (Metaleuca spp.), and geranium (Pelargonium adoratissimum) on the sores. You may also rinse your mouth four times a day with 1/2 cup water mixed with 1 drop each of the oils of geranium and lavender (Lavandula officinalis).