Does cryotherapy treat actinic keratosis?

Actinic keratosis is a sun-related rough or scaly lesion. During cryotherapy, a clinician applies controlled cold to the diagnosed area. The treated skin commonly becomes red, swollen, blistered, or crusted before it heals. Cryotherapy is often practical when there are individual lesions that can be seen and targeted. It may be less suitable when a patch is extensive, thick, recurrent, or difficult to distinguish from another lesion. Treatment removes the visible target; it does not undo the underlying sun damage in surrounding skin.

Have a dermatologist confirm that a rough spot is actinic keratosis before treatment, particularly if it is tender, thickened, bleeding, or changing. The clinician may discuss observation, a prescribed treatment applied to a wider area, or another procedure when several lesions or a larger sun-damaged field are present. Protect exposed skin with clothing and broad-spectrum sunscreen, and keep scheduled skin checks because new lesions can develop.

Arrange prompt review if the spot becomes a persistent sore, bleeds repeatedly, forms a thick growing scale, develops increasing pain, or changes in appearance. After freezing, seek advice for spreading redness, drainage, fever, severe pain, or a wound that is not healing as expected. A lesion that persists or returns may need reassessment rather than repeated self-treatment.

Ask whether the lesion is suitable for cryotherapy, how its diagnosis was established, whether nearby sun-damaged skin also needs treatment, how to care for the crust, and when the area should be checked again.