 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. Hi, this is Dr. Ryan Bemis. If you are experiencing pain and discomfort, MLS laser therapy may be the right solution for you. It certainly was for Lee.