Wartner Wart Removal Pen 1 pc Wart pen for easy, fast, effective and safe removal of warts. How to use After the liquid has flowed into the tip of the pen, place it on the wart. Then click the blue button once and hold the tip of the pen on the wart for 10 seconds. In the case of larger warts (> 6 mm), another application may be necessary. Repeat the application once a week until the wart disappears, but not more than 6 weeks. Warning: Not suitable for children from 4 years of age. Not recommended for patients suffering from diabetes or circulatory disorders. For single patient use only. For external use only on hands and feet. Do not use on other parts of the body. Keep out of reach of children.