A skin disorder, acne is caused by the action of hormones on oil glands and hair follicles. It is not a disease or an ailment, rather a skin condition in which red pimples are seen on the affected areas. Most commonly found on the face, acne may also occur in the other regions of the body, such as neck, chest, back, shoulders and even the upper arms. It is the most common and chronic skin disease, usually seen in teenagers. However, adults are not totally spared from the disorder. Acne may be hereditary or can result from high stress levels, hormonal changes, menstrual periods or secretion of excessive oil in the skin. However, it can be prevented by resorting to certain home remedies. Know more about the natural ways to cure acne problem.