Willoway Medical Clinic

Cryotherapy for selected skin lesions

Learn about cryotherapy for selected skin lesions, assessment, healing and possible risks. Ask Willoway about availability and suitability.

Precision cooling for selected skin lesions, with assessment and a considered plan for your skin.

Cryotherapy uses controlled cold to freeze a targeted surface skin lesion. Suitable lesions may include viral warts and verrucas, skin tags and seborrhoeic keratoses (benign, often waxy or warty-looking growths). Diagnosis and suitability assessment come first; not every skin mark can be treated.

Lesions we may treat

Following diagnosis, cryotherapy may be suitable for viral warts and verrucas, skin tags, and seborrhoeic keratoses. Suitability depends on the lesion, its size and position, your skin and health history, and the likely benefit of treatment. Not every lesion is suitable.

Verrucas and warts

Warts and verrucas are caused by human papillomavirus (HPV) infecting the outer skin. A verruca on the sole can become covered by thickened keratin and pressed inward by walking, which may make it uncomfortable and harder to treat. The virus may persist in the skin, and your immune response also influences how it behaves. Freezing starts a local skin reaction and healing process; more than one treatment may be considered, but response varies and clearance cannot be promised. Warts and verrucas often need multiple sessions, allowing the treated skin to heal before reassessment and any further freezing. Each session treats a limited area of affected tissue; persistent HPV-infected tissue and the body’s immune response mean one session may not clear the lesion. Your clinician agrees review intervals individually.

Actinic keratoses and assessment

Actinic keratoses are sun-damaged patches with a small potential to develop into skin cancer. Cryotherapy is an established option for selected actinic keratoses when diagnosis and treatment are undertaken by an appropriately qualified clinician. It is not a cosmetic treatment for an unassessed patch. If a lesion is suspicious, changing, uncertain or may need a sample for diagnosis, it should not be frozen as a routine benign lesion; it needs appropriate medical assessment or referral.

What to expect

The freezing itself takes seconds. Temporary stinging or soreness, redness, swelling, blistering and a scab can occur as the area heals. Healing time varies by site and lesion. Changes in skin colour or a small scar are possible, and a lesion may persist or recur. If appropriate, your clinician can discuss aftercare and whether a review or further treatment is worth considering.

When to seek medical help

Only lesions assessed as suitable should be treated. A changing, bleeding, crusty or uncertain mark needs medical assessment, not routine cosmetic freezing. Contact your GP promptly about a suspicious lesion. Blistering, discomfort, pigment change, scarring, persistence or recurrence are possible; seek clinical advice for worsening pain, pus or delayed healing.

Your questions

How many cryotherapy sessions will I need?

There is no fixed number. It depends on the diagnosis, lesion and how your skin responds as it heals. Your clinician can reassess whether another treatment is appropriate; complete clearance cannot be guaranteed.

Will freezing a verruca remove it straight away?

Not necessarily. The treatment creates a local reaction, and the affected skin needs time to heal. Verrucas may persist because HPV remains in the skin, while the body's immune response can influence resolution. Thickened skin and pressure on the sole can also make a verruca more difficult to treat.

Can any sun spot or skin growth be frozen?

No. A clinician should first assess and diagnose the lesion. Some actinic keratoses may be suitable for cryotherapy under qualified medical care, but suspicious or uncertain lesions should not be treated as routine benign growths and may need further assessment.

Why do warts and verrucas often need multiple sessions?

They are caused by HPV in the outer skin. Thick keratin, particularly on a weight-bearing sole, and persistent infected tissue can make clearance harder. Freezing treats affected tissue, but the skin must heal and the immune response also matters. Repeat sessions may be needed after review; there is no fixed number or guaranteed clearance.

Your next step

Ask about current availability, fees and the scope of any appointment. This page provides general information, not an individual assessment or confirmation of a particular treatment, test or specialist partnership.

Ask about an assessment

Further patient information

British Association of Dermatologists — Cryotherapy patient information leaflet British Association of Dermatologists — Actinic keratoses patient information leaflet NHS — Verrucas
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