“…For recalcitrant disease, oral retinoids, cyclosporine, methotrexate, biological agents and anakinra have been found to be useful [3,13,15,16]. Recent recommendations suggest the use of biologics only in patients with concurrent psoriatic arthritis results of the use of such agents for PPPP are conflicting, and these medications confer significant side effects including immunosuppression, bone marrow suppression and liver damage [16,17]. …”