While there is usually no pain from the nitrogen, the area may become swollen and painful once it thaws. It's a favored treatment for big or deep tumors, and tumors in places that are hard to treat. The doctor scrapes off many thin layers of the tumor one at a time, examining each layer for cancer cells through a microscope. The scraping continues until the tumor is gone. The size of the scar depends on the size of the treated area.
Laser therapy produces very little scarring, but the treated area is usually painful until it heals.
This aids healing and reduces scarring. The form of therapy attacks the tumor with cancer-killing medications applied in cream or lotion form. The medication causes pain and inflammation during treatment, but usually leaves no scar. This treatment can cause a rash or make the skin dry or red. After the treatment, the area may be discolored or feel unusual.