How long does cryotherapy take to work for Bowen's disease?

Bowen's disease is an abnormal change limited to the outer skin layer. Freezing damages the selected cells, and the site can become red, swollen, blistered, or crusted before new skin forms. Appearance alone cannot confirm that the lesion has cleared. The clinician may examine the treated area after healing and decide whether observation, another treatment, or a different assessment is needed.

Use the wound care instructions provided, keep the site clean, and avoid picking at a blister or crust. Protect healing skin from sun exposure and tell the clinic if the area is repeatedly irritated by clothing or movement. Keep the scheduled review even if the patch looks better, because Bowen's disease needs follow-up based on examination rather than appearance alone.

Contact the treating clinic for increasing pain, spreading redness, warmth, pus, an unpleasant smell, fever, or bleeding that does not settle with gentle pressure. Arrange review if a scaly, thickened, or red area remains after healing. Get urgent help for breathing difficulty, widespread swelling, or other severe allergic symptoms.

Ask when the treated area should be reviewed, how the lesion's thickness affects the plan, which wound changes are expected, and what happens if abnormal skin remains.