Like all acne, back acne is because of overactive sebaceous glands. These glands deliver an oily substance called sebum, which helps keep pores and skin nutritious. On the other hand, far too much sebum may result in microorganisms development and useless skin cells, which can block pores from the skin. https://ztndz.com/story27082159/considerations-to-know-about-lower-spine-back-pain-relief