<unk>  is a cosmetic medical procedure in which the surface of the epidermis of the skin  the stratum corneum is removed by abrasion (sanding). 
It is used to remove sun-damaged skin and to remove or lessen scars and dark spots on the skin. The procedure is very painful and usually requires a general anaesthetic or twilight anaesthesia, in which the patient is still partly conscious  Afterward, the skin is very red and raw-looking, and it takes several months for the skin to regrow and heal.<unk>  is useful for scar removal when the scar is raised above the surrounding skin, but is less effective with sunken scars.
In the past,<unk>  was done using a small, sterilized, electric sander. In the past decade, it has become more common to use a CO2 or Erbium:YAG laser. Laser<unk>  is much easier to control, much easier to gauge, and is practically bloodless compared to classic<unk> .
Dermabrasion
Clioquinol and hydrocortisone cream
Sunscreen
Imiquimod
Skin grafting
Blepharoplasty
Nd:YAG laser
Chemical peel