Some are simply unpleasant tagalongs, like dandruff; some may actually be mistaken for acne, but require a different course of treatment. Of course, only your dermatologist can make a conclusive diagnosis. But learning a little about these conditions may help you formulate questions for your doctor.
Acne cosmetica. As its name suggests, this mild and relatively common form of acne is caused by cosmetics. Since it’s triggered by topical products, it can strike anyone even people who are not physiologically prone to acne. It typically consists of small, itchy or rashy pink bumps on the cheeks, chin and forehead, developing gradually over the course of a few weeks or months. It may persist indefinitely, but usually does not cause scarring. How can you avoid it? When shopping for make-up and skin products, look for products that are “non-comedogenic.” These products are less likely to cause irritation or clogging of the pores.
Dandruff (or Seborrheic Dermatitis). For reasons we don’t know, dandruff often accompanies acne, especially in adolescents. The causes are similar. For dandruff sufferers, the natural process of scalp-cell renewal is...