CAUTION CUSHIES. Many Cushie patients use Neti pots after pituitary surgery to clear the sinuses. They swear by them. But be careful. http://abcnews.go.com/m/story?id=15170230 "If you are irrigating, flushing or rinsing your sinuses, for example, by using a Neti pot, use distilled, sterile or previously boiled water to make up the irrigation solution," Louisiana State epidemiologist Dr. Raoult Ratard said in a statement. "Tap water is safe for drinking but not for irrigating your nose."