The standard Medical diagnosis for Sinusitis does not recognize that about
80 % of chronic sinus infections are a result of a fungal growth with an opportunist bacterial infection along with it. Thats why antibiotics dont always cure the problem. An antifungal treatment will clear the problem in a week or two. I learned this from my own experience. After three years, 3 MD's,
one Ear Nose throat specialist , a chinese Herbologist, and finallly a Live Blood Analysis, I discovered the cause. I was systemic with a gut fungal infection that that was leaking into my blood via Dysbiosis and taking up residence in my sinuses. You wont hear this from Main stream medicine. Expensive operations and invasive treatments wont solve this problem.