clogged sinus's! need help.

My sinus's have been clogged for 5 years. I thought it was allergies when I moved here where there are a lot of trees and bushes I didn't have by the coast but none of the allergy medicines worked.
It felt like there was an infection in my sinus's and I had/have bad headaches. Now I think it's systemic candida, a fungal infection in my nose.
I've been spraying grapeseed extract in it, which burns but clears it out, but there's so much and it's been getting worse for months. I also use coloidal silver spray which helps too, but like I said, I can't believe how much snot comes out! And now it's not clear anymore. It's very thick and stringy.
I can't sleep. My nose gets so clogged it's painful.
Has anyone else had this? When will it end?
Thanks.
Happy Hollidays.