When added to cold water in your Vicks Vaporizer or other hot/warm steam vaporizer, Vicks 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. Temporarily relieves cough associated with a cold. Add to cold water in your Vicks Vaporizer or other hot/warm steam vaporizer to 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. For steam inhalation only. Do not take by mouth. Not for internal use.