Acne is a common skin condition that happens when hair follicles under the skin become clogged. It is the formation of comedones, papules, nodules, and cysts as a result of obstruction and inflammation of pilosebaceous units. Most often, acne occurs on the face but can also appear on the back, chest, and shoulders. Acne is estimated to affect 9.4% of the global population, making it the eighth-mos...