Medpor coming out of my nose 15 years post-op? (Photos)

I had a nose surgery 15 years ago and remember the removal of splints/stitchesbeing extremely painful with a lot of pulling. Since then, I had a bump in my inner nose that never let me breathe very well but a joke a doctor made made me terrified of having it fixed and so I lived with it. However the past few months I’ve noticed something popping out of my nose, getting worse with time. It’s now extremely obvious something is wrong and it’s painful. I don’t know what to do.