Nature Works® Chest Rub natural cold medications. A fresh herbal vaporizing balm, NatureWorks Chest Rub relieves bronchial congestion and alleviates coughing. Chest Rub temporarily relieves cough due to minor throat and bronchial irritation occurring with the common cold. It helps to control the impulse to cough so you can rest. With NatureWorks Natural Cold Medications, you have a synergistic system for relieving the symptoms of seasonal illness. All NatureWorks remedies are made from unsurpassed herbal extracts and essential oils and are analyzed to assure you of unquestioned purity and optimum potency.