I have a mole between my shoulder blades. It developed in 2012 and according to my siblings its color was purple. I didn t get concerned because my father had a number of them and one of them was also somewhere by the shoulder blade. Last year it turned black and I started getting concerned. I started squeezing it and a stinky pus got discharged but the skin would still remain raised. Two weeks ago, somebody managed to squeeze it discharging all the pus until it became flat. My skin is flat there now but whenever I try to touch where the mole was, the finger comes back with a smelly liquid instead of pus. Was this a normal mole or something else?