How is tx of keratoses?

• Cryotherapy: This involves freezing the lesion with liquid nitrogen • There are also various creams that destroy precancerous cells: imiquimod, 5 FU • Surgery should be used to remove the lesion or to take a biopsy to see if it has developed into skin cancer • There are also other treatments by area, including various modalities of light treatment such as dynamic phototherapy (PDT) • Indication according to the number of lesions, their location, the age and the general state