mackenzie2
Actually, according to research conducted by the Mayo clinic, 96 percent of all sinus problems are caused by fungi. While I haven't tried some of the antifungal suggestions I've read about, such as using a xylotol nasal spray like Xclear or a nasal spray with grapefruit seed extract in it, I have found that while using Nystatin, a general antifungal, my sinuses have really cleared up.