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Intralesional vitamin D3 versus Candida antigen immunotherapy in the treatment of multiple recalcitrant plantar warts: A comparative case–control study

Intralesional immunotherapy is one of the therapeutic tools of warts. Intralesional Candida antigen was reported as successful treatment of warts. Topical and intralesional vitamin D have been used recently for wart treatment. We aim to evaluate the efficacy and safety of intralesional injection of vitamin D3 in treatment of multiple recalcitrant plantar warts in comparison with intralesional Candida antigen. Sixty patients were divided into three groups: Group I received intralesional vitamin D3, Group II intralesional Candida antigen, and Group III intralesional saline (control group). Injection was done every 3 weeks until clearance of warts or a maximum of three treatments. There was a statistically significant more reduction of warts numbers after treatment in Group I than in the other groups (p < .05). Group I showed better clinical response than Group II (p = .021). In both Groups I and II, clinical response was less favorable in patients with longer disease duration (p = .026). There was also limitation as it is a small study population. Intralesional vitamin D3 injection in multiple recalcitrant plantar warts is a simple, safe, cost effective treatment modality with minimal side effects, and superior results compared with intralesional injection of Candida antigen.