I have uneven lip from childhood biting. What could I do to fix it? (photos)

I was wondering what is the most easiest solution that isn't invasive to correct it? I would like my lip to be even on both sides. Clearly I bit one side too much as a kid. The tubercle of my upper lip is also a bit deformed. What could I do to fix this? Is there any natural way to do it? Natalie.