Bazuka Treatment Gel contains salicylic acid which gradually and gently removes the infected skin tissue, thereby eliminating the virus. Also, the gel dries over the area to form a protective water-resistant seal over the verruca or wart in order to help reduce the spread of the infection. Bazuka Treatment Gel is a once daily application. It is designed to inhibit the spread of the verrucca/wart infection and it does this by forming a water-resistant, protective barrier. About warts and verrucas: The fact is most people will suffer from a wart or verruca at least once in their life, usually before the age of 20. It is e d that at any time, around one in ten people in the UK have a wart or verruca. Warts and verrucas are a common problem for children especially, since they are very infectious and easily passed around. Public swimming pools are well-known verruca risk areas, since children walk around bare-foot, making the infection easy to spread. What is a verruca? Verrucas are warts on the foot, or \'plantar warts\'. You could call any wart a verruca, but people usually use the term \'verruca\' specifically to mean a wart on the sole of the foot. What causes verrucas? Verrucas are caused by an infection of the skin by a virus called the Human Papilloma Virus (HPV), which is highly contagious. The viral infection is spread through skin contact with contaminated surfaces. We are especially prone if our immune system is weakened, or if the skin on our hands and feet is damaged by cuts or scratches and comes into contact with rough surfaces contaminated with the virus. This explains why people often catch verrucas in communal changing areas, like those at swimming pools and gym clubs. Virus-infected skin cells are shed onto the floor and passed onto others walking over the same area. If someone has a wart or verruca the virus can spread to other parts of their body as well as to other people. Verrucas tend to appear on weight bearing areas such as the ball of the foot, making them particularly uncomfortable and quite painful to walk on. In addition, verrucas can be more painful when you wear tight fitting shoes. Things to know about verrucas. Verrucas may go away by themselves eventually, but this can take a considerable length of time, and there is always the