Symptoms - psychological, physical, cyclic (same time each menstrual cycle)
Etiology - Edema? Elevated estrogen levels of estrogen/progesterone levels? Abnormality of levels of other hormones? Vitamin B6 deficiency (estrogen clearance, needed for production of certain neurotransmitters)?
Microcomedo, whiteheads and blackheads, nodes, and cysts
Treatments? Benzoyl peroxide (kills bacterium, may reduce oil production); salicylic acid, resorcinol and sulfur break down blackheads and whiteheads; antibiotics; tretinoin stops the development of new comedones and increases cell turnover, isotretinoin, androgen reduction