How To Remove Sac Like Thing From Nose?

I have a sac type thing in my nose. It is inside my nose It is attached or I think attached On the top of it and on the thing that divides both nasal cavitys. I have tried to remove it many times with tweezers I never can. The closest I came was a little tiny piece came off it looked like skin to me. Everytime I try to remove it it begins to bleed. It has gotten bigger I think since I first got it. Can any one help me please?