Intralesional full-concentration (25 mg/ml) methotrexate in the treatment of plantar warts: A pilot study.

Plantar warts continue to represent a therapeutic challenge due to treatment resistance and high recurrence rates. Intralesional methotrexate, a cytotoxic chemotherapeutic agent with in-vitro anti-viral properties has been used for many dermatological indications. Two previous studies evaluated intralesional injection of diluted methotrexate (in 0.