 These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Message and data rates may apply. Paid for by Roundhouse Provisions. Why is Navage perfect for allergy sufferers? Rhino Systems Medical Director Dr. Howard Levine explains. If someone's exposed to allergens, they can get rid of those immediately by washing out the nose. Navage works by pulling saline in one nostril, through the nose, and out the other nostril, sucking out allergens, mucus, dust, and germs. Experience on-the-spot relief so you can breathe easier, sleep better, and feel healthier.