The Use of Biologic Therapy in the Treatment of Acrodermatitis Continua of Hallopeau: A Review.

Acrodermatitis continua of Hallopeau is a rare subtype of pustular psoriasis that presents as a sterile, pustular eruption commonly in the finger tips and toes. This disease inflicts both the skin and nail bed, and causes severe disfigurement of the distal phalanges. Because it is a variant of pustular psoriasis, acrodermatitis continua of Hallopeau is commonly managed with antipsoriatic medications. Common approaches to treatment include topical therapy (corticosteroids, vitamin D analogs, and calcineurin inhibitors), systemic therapy, and in more severe cases, biologic therapy. This review will discuss how acrodermatitis continua of Hallopeau is diagnosed and how it is managed, with a particular emphasis on the use of biologics.