Bullous pemphigoid developed in a patient with chronic benign familial pemphigus

To the Editor:Chronic benign familial pemphigus,or Hailey-Hailey disease(HHD),is an inherited acantholytic dermatosis characterized by chronic recurrent vesicles and maceration in intertriginous sites.l Bullous pemphigoid(BP)is an autoimmune subepidermal blistering.disease.2i We reported a patient with clinical and histological features of BP and HHD.