Tooth root through sinus cavity

Je

A few years ago I had a top tooth removed where the root was through my sinus cavity and they had to take skin from the side of my mouth to repair the hole. I was told that I actually will never heal completely as in the jaw bone will never fully repair itself.

Last week I had a horrible cold where I was constantly blowing my nose and now that hole hurts horribly.

Has anyone ever gone through this?