I first heard about this contraption from Dr. Oz on the Oprah Show. This is used when you have clogged or runny nose or allergies. You pour a warm saline solution into one nostril and allow it to drain out the other nostril. Eww - I know, that what my reaction was at the time. But when I tried it, it works. It cleanses out your nasal passages, cleans out the pollen, dust or other allergens. It is used twice daily until the symptoms stop. You can purchase a Neti pot from drugstores like CVS or RiteAid.