I'm sorry to hear that your friend is doing these things to herself, and is having these thoughts.
We've had many threads on this particular subject. This one has thoughts from cutters themselves, that might help you gain perspective on where your friend is coming from.
Also, I did a search for "cutting" and came up with many different threads. Go ahead and look through them, while others can help you answer your question.
http://www.scarleteen.com/forum/Forum9/HTML/000175.html http://www.scarleteen.com/forum/Forum9/HTML/000223.html http://www.scarleteen.com/forum/Forum9/HTML/000458.html http://www.scarleteen.com/forum/Forum9/HTML/000517.html
I hope you do read those, as they contain a treasure trove of good information. Good Luck.
[This message has been edited by DarkChild717 (edited 09-19-2005).]