Replied By Janet (Alexandria, La, United States) on 11/20/2009
Instead of adding GSE to your saline, purchase the a nasal spray with Grapefruit Seed Extract. It has the correct proportions, and does not sting. It worked for my sinus infection, and I have since bought a bottle for each of my grown children. I could only find it at health food stores out-of-town, so I recommend calling first, because 1 out of 5 stores might have it. Just ask if they have nasal spray with GSE, and stress that you don't mean GRAPE, but GRAPEFRUIT.