I am 42, diabetic (borderline according to doctor)(new diagnosis of diabetes). I keep getting boils. I now have one of my chest that is larger than a silver dollar. It is painful, almost purple, very very deep and hard. It has been there for about two weeks and has not come to a head. It is getting more and more painful. I had one on my neck about a year ago and surgery was required which left a horrible scar on the back of my neck, so I am hesitant to go back. I m afraid, however, that in getting bigger, it might need some medical attention. Thoughts?