I get it, you are asking a simple question expecting a simple answer. What most people are saying here is why would you wrap it? Is that the best thing to do right now? Maybe it's better not wrapped, blood flow to the injury might what's best for it right now. Ultimately she needs to be examined by a medical professional, something happened a week ago and it hurts when hitting today should not go unexamined. Get it looked at, forget the wrap