I have what looks like a pimple under the skin. It s hard, the areas red, it hurts but does not come to a head. I ve proceeded to squeeze it because it hurts and it doesn t pop, so I stuck a clean needle in it to drain it, but instead of draining, it bleeds then appears to be a hole with pus that doesn t want to come out. What is this and what s causing it? And what will make it go away.?.