IF YOU USE A NETI POT, YOU NEED TO USE DISTILLED WATER OR STERILE SALINE: Two deaths from brain-eating amoeba linked to sinus remedy for colds. “Tap water is safe for drinking, but not for irrigating your nose.” Plus this: “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. . . . He added that it is important to rinse the irrigation device after each use and leave open to air dry.”

I favor this sterile saline spray in a can instead. Works just as well, less trouble.