i have lumps or growths in my nasal passage ways.....after visiting with an ENT Specialist, he suggested they were merely polyps OR muscle overgrowth from years of infection and allergies...which I have had been since a child......Needless to say, there is not much you can do about them anymore; unless there is close to 100% blockage of the nasal passages......I know in the past, or my fathers generation doctors would physically remove the overgrowth...Or trim it back...Now doctors have deemed this an unnecessary procedure unless it is rather extreme
I will suggest this just applies to me, so you will wish to continue to follow up with your physician OR an ENT for sound advice.
Best of luck