Cajeput is a small tree with an erect but crooked trunk; a soft, thick, spongy, whitish, ash-colored bark; and scattered branches, with the slender twigs often drooping as completely as in the weeping willow (Salix Babylonica). cajuput oil cools down the body and helps with infections such as colds, laryngitis and bronchitis. It is also helpful for asthma, sinusitis and a sore throat.