About 2-5% of the population has some form of Seborrheic Dermatits, which is more commonly known as dandruff and cradle cap.  It is a chronic, superficial, inflammatory disease with a predilection for the scalp, eyebrows, eyelids, nasolabial creases, lips, ears, sternal area, axilla, submammary folds, umbilicus, groin and gluteal creases.  The scale is often yellow… Read more »