Common warts are caused by human papillomavirus infection. This disease is contagious and recurrent. Currently, the most common treatment is cryotherapy with liquid nitrogen. Generally, small warts can often be completely removed with one treatment. Slightly larger warts may require two to three, or even three to four cryotherapy sessions, but they can ultimately be completely cured. Clinically, a topical remedy called Wart-Off can also be used to completely cure the warts, although this method may take a longer period. During the treatment period, avoid consuming spicy and stimulating foods, as they may cause the virus to grow more rapidly. Try to avoid scratching the affected area, as this behavior could potentially spread the disease and lead to more growth. It is also important to protect the normal skin during treatment.