“…Previously reported side-effects of efalizumab in patients with atopic dermatitis were viral infection, rebound phenomenon, Staphylococcus aureus infections and thrombocytopenia. 9,11 In our material, disease severity progressed in 5 patients, and in one case, the progression was severe, which led to drug discontinuation and supplementary therapy with systemic steroids and cyclosporin. Impetigo occurred in 6 of the 11 cases (1, 4, 7, 8, 9 and 11) and was treated with dicloxacillin, within a mean period of 5 weeks after initialization of efalizumab (range, 2-10 weeks), and one patient (case 5) was treated with topical fucidic acid after 12 weeks of efalizumab therapy.…”