This is common among those with long hair, as shampoo and conditioner may run over your neck, shoulders and back during a shower. Hormonal body acne: Hormonal changes can increase the skin’s ...

“This type of acne may also extend along the jawline and neck, typically flaring a week before menstruation,” says Dr. Shirazi. Hormonal acne doesn’t operate in a vacuum either. “It’s ...

For example, an athlete who uses helmets, like a cyclist or a football player, might develop pimples on their forehead, scalp, neck, and chin. Hikers might get acne on their shoulders and backs ...