[Bullous pemphigoid].

Bullous pemphigoid is the most frequent autoimmune bullous skin disease and affects subjects who are about 80 years old. The risk factors are neurological degenerative diseases, poor Karnovski's status and some drugs (aldactone and neuroleptics). Typically, the disease consists of itching eczematous or urticarial sheets, surmounted by blisters.