Like all acne, back acne is because of overactive sebaceous glands. These glands make an oily compound known as sebum, which helps retain pores and skin healthier. However, an excessive amount sebum can result in microorganisms growth and lifeless skin cells, that may block pores inside the pores and skin. https://directoryserp.com/listings13485754/an-unbiased-view-of-medicine-for-lower-back-pain