Seborrhea or seborrhoeic dermatitis is a dermatological condition which is characterized by flaky, red, itchy, and scaly skin. It can affect any body part, such as the scalp, or arms. Seborrhea of the scalp is called dandruff. You can find more information here: http://familydoctor.org/online/famdocen/home/common/skin/disorders/157.html
