I had what looks to be a scar on my finger. It was reapply soar and looked as though there was something under it. So o very carefully poked a hole in on end then the other. Some oily looking puss came out and the skin was sitting there getting eu Ned and fought on everything so I carefully took it off. I then See what looks to be a zit I start to squeeze with medium pressure and it exploded. I now have another one forming else were. What is it?