Herb-Infused Balms for Healing + Headaches A balm is a mixture of herbal infused oils, some form of wax and essential oils. Balms tend to be more aromatic because the higher amount of EOs used for their healing properties releases a cloud of soothing vapors upon application. Peppermint – Cooling, analgesic, antispasmodic, anesthetic, decongestant, febrifuge, insecticide, stimulant – clears thinking …