Hi Jessica - First, let me tell you - this isn't a typical breast cancer symptom, and you don't have breast cancer. Please read our message to teens for information that should relieve your stress. I'm glad you're diligent about noticing change sin your breast, and it's a good habit to develop, for when you're older; but at your age, you really can pretty much put breast cancr out of your mind.   It sounds like you have a skin irritation; try treating it with cortisone cream, or your favorite anti-itch remedy, and try not to scratch. If it doesn't disappear within a week, best to see a doctor for some advanced treatment, OK? Good luck - PJH