I am really suffering with sinus right now. I was on a candida diet, with no milk or wheat, this really helped, hardly a sniffle the whole time. Now I have blown it and been eating rubbish for the past 2 weeks and can hardly breathe. I'm sure it's gluten and lactose intolerance with me. Summer is coming and I wont be able to survive the hayfever, I will get back on the diet and try flushing with saltwater.
Have you done a parasite