Self injury is a means that some people use to express or release emotional pain. This may include carving, scratching on the arm or leg, superficial cuts, cigarette burns, pulling out the hair, or pinching and picking at their skin. It is important for your daughter to learn to express her feelings openly with a person that she feels safe with--sometimes this is a counselor or therapist especially in more serious cases. In less severe cases, journaling or other more positive ways of coping with intense feelings can be a helpful way to work through the emotions that are causing her to self harm. If your daughter is self injuring it is important to understand what is causing her to do this, then help her to find ways to deal with her emotions more effectively and safely.