Ear candling, also called ear coning or thermal-auricular therapy, is an alternative medicine practice claimed to improve general health and well-being by lighting one end of a hollow candle and placing the other end in the ear canal.ar candling, also called ear coning or thermal-auricular therapy, is an alternative medicine practice claimed to improve general health and well-being by lighting one end of a hollow candle and placing the other end in the ear canal.