I have a lump on the side of my penis that is really sensitive to the touch but other times its generally just sensitive. if i squeeze it puss and a little blood comes out. but before the lump i had a little dent there with something hard under the skin. if i squeezed it, a little of what looked like a sorta thick white stuff would come out but it kinda held its shape until i touched it then i would flatten out and break apart but there wasnt a foul smell. but in that area now i the lump i mentioned before. what is it and how do i get rid of it because its like half way up the shaft of my penis.