Alopecia Areata

Sharply demarcated, circular patch of hair loss on scalp. Look for “exclamation mark” hairs at the periphery.

Rosacea

Prominent facial erythema, telangiectasia, rhinophyma, and scattered papules. (Courtesy Dr. L. From)

Acne Vulgaris

Inflammatory papules, pustules, and open comedones.