Burning, dusty, musty smell from nose

Hello!!! My girlfriend complains of a "toasty", dusty, musty smell coming from my nose... I have years of experience with sinus infections, and the smell is always at its worst when I get an infection, but sometimes the smell comes around even when I don't have symptoms... After using the Grossan irrigator daily for a few months, I have found that my sense of smell has improved GREATLY, and I believe that I have now smelled this "burning" smell for the very first time... To me it smells like a furnace when it's turned on for the first time of the season, but also like an old, dusty, musty couch.... Does anybody have experience with this phenomena? Some people describe it as smelling like there's a cigarette burning in the room when there is none... Like I said, I have been using the Grossan irrigator for several weeks, and when my symptoms flare up, I put some Grapefruit-Seed-Extract drops in the saline mix and the yellow mucus and congestion all but disappear, but the smell remains!!!! I am going to try diflucan now to see if my problem is fungal... Also, it might be a food allergy ... I have had a bout with candida in the past, but I really don't have symptoms from that anymore... Any shared experience with this would be greatly appreciated... Tweet