question: I have had bad acne for almost a year and have been treating it for five months with no success, it s actually getting worse. Just recently I have developed dime sized puss sacks on my skin , and some turn black underneath the skin. I decided to pop one, and white puss and blood came out, I proceeded to pop it and blood mixed with some kind of black liquid came out. Does anyone know what this black substance could be, and is it normal? I have had black heads, and this I assure you is not a black head.