Skin Ulcer Pictures What Could This Bump Be And How Can I Get Rid Of It?

What could this bump be and how can I get rid of it? - skin ulcer pictures

I had a bulge just below the skin color of the mouth and on the chin for a few months or now. There is a button or something. If I shake or piercing with a needle, nothing happens. What is it and what can I do to get rid of it?
It looks like a blister, ulcer, or something.

The following link leads to a picture of her:
http://i76.photobucket.com/albums/j31/him_skater/whatever/Bump.jpg