my daughter has what I'm calling a blood blister on the right side of her chest. It's about one or two inches below her colar bone. It started out small and has developed into a huge meaty looking bump that sticks out about 1/4 of an inch. every time she popped it, it would bleed a little. all bood no puss. It seemed like it gets bigger and bigger every time she sticks a needle in it. what can we do to make it go away?