Vicks VapoRub topical cough suppressant is brought to you by the world's #1 selling OTC cough and cold brand*! Vicks VapoRub is a topical cough over-the-counter medicine with powerful Vicks vapors. It works quickly to relieve coughs so you can breathe easier. Vicks VapoRub is specially formulated with three active cough suppressants: menthol, camphor, and eucalyptus oil. To use, rub a thick layer of the medicated ointment on your chest and throat to temporarily relieve cough due to minor throat and bronchial irritation associated with the common cold. Keep clothing loose around throat and chest to allow the Vicks Vapors to reach the nose and mouth and go straight to the source of your cough.