These aromatherapy shower steamers were designed to help manage symptoms of cold, sinus and nasal congestion.Made with eucalyptus, tea tree, peppermint and wintergreen essential oils these shower steamers give you the experience of a menthol chest rub without any menthol or toxic ingredients. All of our shower steamers are made with 100% pure essential oils and hand mixed and molded using the best ingredients. There are no fragrance oils whatsoever. Contents: 4 Immune Defense shower steamers. Directions: For quick showers and maximum fragrance, place shower steamer on floor of shower in the direct stream of water. For longer showers and a light but longer lasting aroma, use mesh bag and place shower steamer inside. Activate with water and hang bag out of direct stream of water to last 2-3 showers.