Chemical skin peeling may be undertaken for either medical or cosmetic reasons. In both cases it is essential to go to a medically qualified professional for treatment. Commonly used peeling agents are phenol, resorcinol, trichloracetic acid and glycolic acid.
Expertly carried out, the technique can make blemishes, fine lines and wrinkles less obvious, and lessen pit marks. It may occasionally be used to treat discoloured areas of skin and freckles.
Cryotherapy(freezing)
Freezing kills the cell within the skin and there is an effective method of dealing with superficial skin lesions such as warts, senile keratosis or "age spots" which occur on the face or back of the hands.
(Source: Webhealthcentre.com)