For many people, the powerful smell of eucalyptus in Vicks VapoRub, brings back memories of childhood and being tucked up in bed with a cold. But Don’t leave vicks gathering dust in your medicine cabinet. there are plenty of clever uses for VapoRub that have nothing to do with a congested chest. Vicks vapor rub is concocted from several essential oils such as camphor, eucalyptus oil, menthol, cedar leaf oil, nutmeg, thymol, and even turpentine oil.