I have a noticeable bump on the left side of my nose from when I had surgery. What it is or what should I do about it.

A little over a year ago I had a septoplasty and a closed reduction after breaking my nose badly in a car accident. I still have a large bump right below my bridge from the surgery, but it hasn't gone down in size in months. A few months after my surgery I asked my surgeon if the bump would go away and he said it would, but considering it is still the most tender part of my nose and is still there I don't know what to do.