Just a thought. But if you have candida in your sinuses and you're killing them off, your body's reaction would be to get rid of it. Snot, buggers, whatever you want to call it, Nasal Leakage, is a reaction of your body to foreign agents. The mucus is used to get it out of your system. So if you're having a lot of it building up, my guess would be that it's because it's trying to get rid of the dead fungus/toxins. However, that's just my guess.