Erythrodermic psoriasis with bullous pemphigoid: combination treatment with methotrexate and compound glycyrrhizin

We report a case of erythrodermic psoriasis with bullous pemphigoid (BP) in a 68-year-old male. The patient had a history of psoriasis for 35 years and tense, blisterlike lesions for 4 months. He presented with diffuse flushing, infiltrative swelling, and tense blisterlike lesions on his head, trunk, and limbs. This patient was successfully treated by a combination of methotrexate and compound glycyrrhizin. We also discuss the clinical manifestations, histopathological features, and differentiation of erythrodermic psoriasis with BP and present a review of the pertinent literature.