[rcooled]

I've had several pre-cancerous spots frozen on my face over the years. Same story as Speeder's...blue eyes, fair skin, and too much time in the sun as a kid.
Every 5 years or so, under the direction of my dermatologist, I apply Fluorouracil cream (USP 5%) twice a day to my whole face for about 10 days. This treatment will remove the dry, scaly patches that can be seen & felt as well as those that are present just below the surface. The biggest downside of this is that you'll look like a burn victim for a while if you have a lot of areas that need treatment. This stuff is only available by Rx from your doctor, and only works on the damaged skin...it'll leave healthy skin alone for the most part. After you stop the applications, the redness will gradually disappear after a week or so and healthy new skin will replace all the dry, damaged patches. If you go this route, it helps to have medical insurance...Fluorouracil will cost about $170 for a 40gr tube. It does have a very long shelf life though, and can be kept around for spot treatments as needed.