Actinic keratosis

Also called solar keratosis, it typically appears where cumulative UV exposure is highest: the face, the scalp where hair has thinned, the ears, forearms and backs of the hands. Lesions are often easier to feel than to see — dry, sandpapery, sometimes pink — and they may come and go.

Because a minority of lesions can develop into squamous cell carcinoma, any persistent rough patch, a sore that does not heal, or a lesion that grows, bleeds or changes should be examined by a doctor or dermatologist. Diagnosis and treatment are medical decisions; exfoliating acids, retinol serums and home remedies are not treatments for it.

What skincare can contribute is prevention of further UV damage: consistent broad-spectrum sunscreen with reapplication, shade, protective clothing and avoiding sunbeds. This information is educational and does not replace an in-person medical assessment.