Using tap water for nasal rinse puts you at risk for nasty bacterial infections, possibly affecting the brain. Use distilled / dionised water, or boil water (a

Using tap water for nasal rinse puts you at risk for nasty bacterial infections, possibly affecting the brain. Use distilled / dionised water, or boil water (and allow it to cool) for such use. A neti pot or nasal rinse bottle are cheap at any druggist's.