Liquid nitrogen treatment for warts, in the case of common warts, usually costs about $20 for a single session for a single wart, but can vary depending on the size of the wart. Liquid nitrogen treatment for warts usually requires 2-3 sessions or even more, with the next treatment available more than 10 days apart. If the number of warts is large, the cost may also vary from a few tens to a few hundred dollars. There are also some side effects of liquid nitrogen treatment for warts, such as pain or blisters. In addition to liquid nitrogen for warts there is also the option of laser, which is more powerful and may require less treatment.