Sinus Relief Shower Steamers. Not enough time to sit and soak in the bathtub, or is getting in and out of a bathtub no longer an option for you? You can still experience the aromatherapy of a fragranced bath by using a shower steamer. Inhale the aroma from the menthol crystals. These steamers are placed inside the shower stall and activated by the stream of water, or you can place them directly into a basin of warm water. You can experience having your own spa, right at home.