Hello,
These can be due to acne or folliculitis skin. Back and shoulder
acne are quite difficult to treat compared to
acne on other parts of the body. Thoroughly wash your body everyday, especially the back and shoulder part using a back brush and frequently change your bed sheet, as it is conducive for bacterial growth. Engage in a diet that is low in sugar and fat but is rich in vitamins. This prevents acne by preventing the buildup of excess oil on the skin.