The Sinus Irrigator Tip for use with a WaterPik or Interplak system can be ordered from National Allergy Supply, nationalallergy.com. I have lavaged since having sinus surgery and it is a good thing! I was advised to add a little salt and baking soda to the water (1/2 teaspoon each). The sinuses feel wonderfully fresh and open afterward, and it is not difficult to do.
Carol Lines
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