re: Actinic Keratosis

that is not the typical distribution of actinic keratosis (AK). They normally occur on sun exposed regions of your skin like the cheeks, tops of ears, nose, hands, arms, shoulders, and top of head (for us bald guys). I doubt what you have is AK. It could be a fungal infection (just a guess). try some topical antifungal creams you can get over the counter at the drug store and if that doesn't work, then go see you primary care doctor. If he can't fix it, he'll get you in with a dermatologist.

Or, if you want the OT answer, it's skin AIDS, you're a goner. find a tree and a good bottle of bourbon. it's been nice knowing you.