Cough suppressant camphor. Increases the action of steam for colds. Vicks VapoSteam is a liquid medication for use in the Vicks Vaporizer or other hot/warm steam vaporizers. VapoSteam increases the action of steam to moisten dry, irritated breathing passages and temporarily relieve coughs due to minor throat and bronchial irritation associated with a cold. The Vicks name means quality products you can trust. Our name has been quality for generations. Made in Mexico.