Raw sauerkraut - I'm talking raw, not the pasteurized kind you buy on hot dogs and at supermarkets. Start with a tiny drop of it - like 1/2 teaspoon, even that small and build your way up. A small bit of it cleared up my sinuses that were congested for years. My guess is it has something to do with eliminating yeast. But if I take too much raw sauerkraut, I'll get stuffy (my guess is this is a detox/healing crisis type reaction). So you have to go slow if you find yourself having these types of reactions. Raw Sauerkraut works wonders for sinusitis and thrush because it gets rid of candida.