The chest, neck, shoulders, upper arms, and even the butt are common places to get pimples. Back acne is so common it even has its own informal name: bacne. Back acne has the same causes as acne that ...

In the meantime, you might notice some purging, or an increase in pimples or dry and peeling skin. Purging refers to breakouts caused by new products that bring bacteria to the surface of your skin.