Your problem, however, may not be acne at all. Occasionally the two are present simultaneously. While both conditions are common and involve pimples, it is very important to distinguish one from the other because they are treated differently. Acne is a very common condition. It generally affects adult women around the jaw, chin and mouth.
Some people notice acne on their shoulders and chest as well.
It is caused by a combination of overly active sebaceous glands and bacteria under the skin. Acne is aggravated by oil-based products and touching your face with your hands or other objects. The treatment of acne centers on keeping the skin free of oils. This includes washing gently with lukewarm water. Using hot water, or overwashing, will actually stimulate oil production, making acne worse.