Lorane
I have had 2 sinus operations & still have mucous in my throat every morning. I am on this a LOT (computer) and doing a lot of research for many things & read from a doctor (NOT a reporter) that all sinus is a fungus, NOT a bacteria, which is very hard to clear up. You might try Nystatin which is FOR fungus..is a liquid which you take about 3 x a day, one teaspoon, swish it around in your mouth & swallow.