Comb and brush acne.

Frequent combing or brushing of the hair may result in an exacerbation of existing acne or be the cause of localized acne. Because of today's hair styling habits and methods, this type of acne is commonly encountered but poorly appreciated by physicians. Patient education is the most important factor in the management of this condition. Comb and brush acne is another external factor to be added to the list of causes of "acne mechanica."