VERRUKILL is a freezing removal treatment that acts immediately causing the area in question, from the wart or verruca to the root, to freeze for a few seconds. In the area that comes into contact with the frozen foam, the skin becomes white and a slight, temporary painful burning sensation may be felt. This is absolutely normal. After treatment, a small, invisible blister will form at the root of the wart or verruca, helping it to come loose. In most cases, 10-14 days after the treatment, the wart or verruca will detach and disappear, thereby aiding the growth of healthy skin. When treating common warts or verrucas, a single treatment is usually sufficient. If necessary you may repeat the treatment after 2 weeks. If the condition persists after four treatments you must consult with a doctor.