The light helps to kill acne-causing bacteria ... I was worried it would feel like needles. Abby Tang: Afterwards, Irina massaged a cream packed with botanical oils into my back and misted it ...

Acne is a very common skin problem ... A derma-roller is a mini wheel covered with tiny needles that prick the face. This is the at-home version of your dermatologist's micro-needling tool.

Is there a way to safely pop a pimple on your chest or back? Of course, if you've got a major pimple or acne cyst on your chest, back, or anywhere on your body, it may be tempting to pop it.