Hi,
Pemphigus is an autoimmune disease of the skin and mucous membranes that
causes vesicles (blisters), bullae and raw sores. It may be triggered by medications, such as penicillamine.
Pemphigus Foliaceus is the least severe of the three varieties. Desmoglein 1, the protein that is destroyed by the autoantibody, is only found in the top dry layer of the skin. Pemphigus foliaceus (PF) is characterized by crusty sores that often begin on the scalp, and may move to the chest, back, and face.