Hi ARM,As an allergy sufferer, I'm a pro at postnasal drip! I don't know if it will help, but I use a NeilMed squirt bottle with a saline liquid to rinse my sinuses. It definitely helps me. It comes with some packets that you use to mix with water, but it's cheaper to make your own. One quart of distilled water to 2 teaspoons of kosher or sea salt. I make it up ahead in a mayonnaise jar. Here's an image of the bottle that they sell in drug stores.
Good Luck!
Denise
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