I don't think dimples are bad; girls seem to ask me to smile alot (that and my pearly whites don't hurt either). I happen to have them on both sides. You could get collagen injections in the area of the dimples to make it smooth out though.
Yeah, I don't think dimples are bad at all... but you might get rid of them with facial excercises and I don't know if this is good for the face at all but I know you might be able to get rid of them if you keep placing some pressure on the area, but I wouldn't since it might cause undersirable results.
I have dimples on both cheeks (on the face) and people seem to be endeared by them. Cosmetic surgeons have a procedure to create dimples, perhaps you can consult w/a surgeon to see if your dimple can be modified or removed.