Just so this segue is OK, because this started out with a blockage of the bronchi in the LUNGs, but if you actually have a fungus ball in your nose, get it to your doctor ASAP. As terrible as virus's and bacterial infections are, molds are hard to kill without killing healthy tissue. How do you know they are fungus balls?
For openers, repeated infections cause blockages and holes in the lungs and ENT (Ears, Nose and Throat) area. A hole through the nasal septum is almost a CF right of passage. If you have holes rotting through your sinuses and possibly nasal septum, it is past time to be seeing your ENT specialist. People blow off chronic head infections as if they can't kill you. How often a sore throat, ear infection or sinusitis has turned into meningitis or something equally bad, has a lot to do with how much time you have an infection so close to the blood/brain barrier.
I don't know of any localized fungus infections, the few people I have known with fungus infections, beyond simple diaper rash, have systemic fungus infections like histoplasmosis, most often from exposure to birds, bats and rodents. It was once known as "caver's disease" contracted from bat droppings. Some time back a group of us were trying to dig out a sand pipe between two adjacent caves. We were very deep in one cave digging while another group dug from another cave, near its entrance. Centuries before, bats had inhabited this cave entrance and ten people contracted histoplasmosis from the ancient sands. In 1968, there was exactly one oral anti-fungal drug to treat this infection. A few who contracted histo, perished from the disease.
An ENT can rebuild and cover over any and all holes in your head. If you really are blowing out fungus balls, don't waste a minute. Get yourself and a fungus ball to your CF specialist, or Alergist.
LL
