Lifted lip correction? (Photo)

Hello my right side of my lip , it your looking at me, the left is raised higher than the other side. It's been like that since I'm a child it makes me look like I have a snaggletooth because you could see the tooth on that side, but not on the other side I'm very self-conscious of it. I wanna get it corrected. I would like to do something that's permanent, as I am afraid to do Botox, but I would like somebody's opinion on what can be done