Significance of interferon gamma in the prediction of successful therapy of common warts by intralesional injection of Candida antigen.

Background: Treatment of common warts remains a continuing challenge for both patients and physicians. Recently, intralesional immunotherapy by different antigens has proved efficacious in the treatment of warts, however, no definite predictive factors for successful therapy have been established. Herein, we evaluate the efficacy and safety of Candida antigen in the treatment of common warts and the significance of interferon gamma (IFN-γ) in the prediction of successful therapy.