Seborrheic Keratosis Freeze-Off: What to Know

Cryotherapy applies extreme cold to a visible lesion. The treated skin may sting or feel cold during the session, then become red, swollen, blistered, or crusted. The crust usually separates as the surface repairs itself. Colour change can remain after healing, especially in naturally darker skin, so ask how your own skin may respond.

A clinician should check that the growth has the typical features of seborrheic keratosis before freezing. If it is unusual, changing, or difficult to distinguish from another lesion, a different assessment or removal method may be more suitable.

Tell the clinician about sensitive skin, cold-triggered skin problems, raised-scar history, immune conditions, and medicines that affect healing. Do not pick a blister or crust. Keep the area clean as directed, avoid friction, and use only the dressing or ointment recommended for that site.

If the lesion is thick, one session may not give the desired result. Alternatives include curettage and cautery or electrosurgery. Your clinician can explain the balance between removing the growth and leaving a temporary or lasting colour change.

Contact the clinic if pain is worsening rather than settling, redness is spreading, the area becomes hot, drainage looks like pus, or you develop fever. Have the original lesion reviewed if it continues to grow, bleeds repeatedly, or does not heal as expected.

Ask why cryotherapy is appropriate, what the treated area should look like each day, how to dress it, whether a repeat session may be needed, and how to reduce rubbing or sun exposure during healing.