Wow, lynn p., that seems like maybe your daughter (in no way to be offensive) should make sure that people don't mess with her. I hit someone for making fun of me once; no one would ever say something like that to me.
Something less drastic; of course, just helping her stand up for herself in the instance someone said or did something to her.
Kids are really ignorant and mean, so it might not be a bad idea. Like karate or something.