Flaking and scaling of scalp, often accompanied by itching. Occasionally, a rash or broken skin will also appear.
What is Dandruff?
From Modern Western Medicine
Dandruff is the flaking and shedding of dead skin from the scalp. Dandruff may be accompanied by an itchy, scaly rash, seborrheic dermatitis, which can occur on the face, chest, and back as well. […]