If you choose the liquid nitrogen freezing method, it is about a ten-odd dollars, however, the liquid nitrogen freezing may choose different treatment times according to the depth of the corns. If it is deeper, the number of treatments may be more and cost more. If it is shallow, the number of treatments may be less and cost less. Corns can also be treated with iontophoresis, which is the same as liquid nitrogen freezing and costs about a few dollars. The more expensive option is the CO2 laser, but the advantage of the CO2 laser is that the corns can be eliminated in one visit, and you don’t have to come back for a few hundred dollars.