Ixekizumab as treatment of erythrodermic psoriasis.

Erytrhodermic psoriasis (EP) is a rare subset of psoriasis that is considered a dermatologic emergency. Due to its limited clinical evidence, pathogenesis is largely unknown and its treatment represents a challenge. Conventional therapies such as methotrexate, cyclosporine, and acitretin are still considered first-line of treatment but it is necessary to study the efficacy and safety of biologics, including antitumor necrosis factor (TNF), anti-interleukin (IL)-23, and anti-IL17 agents to define new guidelines of treatment. Here, we report two cases of patients with EP treated with ixekizumab.