Can anything repair numbness and scarring after mucocele Lip Surgery removal? (photos)

I had a medium sized mucocele removed from the inside of my bottom lip 2 years ago after biting it badly. The procedure was simple and it healed adequately from a health perspective. But now there is about a 1cm diameter spot from the outside of the lip into the inside which has no feeling, as well as a slightly raised scar on the inside, both of which are very annoying and also serves as a risk for biting it further. Can anything restore feeling and remove the 'extra' flesh?