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.