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Actinic Keratosis Removal

Actinic keratosis treatment in London by GMC-registered specialists. Field treatment, cryotherapy and erbium laser for pre-cancerous sun-damaged skin at our CQC-regulated Baker Street clinic.

Actinic Keratosis Treatment in London

Actinic keratosis treatment at Centre for Surgery is provided by GMC-registered specialists working from our CQC-regulated clinic at 95–97 Baker Street in Marylebone. Actinic keratoses are pre-cancerous skin lesions caused by long-term sun damage, with a small but real risk of progression to squamous cell carcinoma if left untreated. We offer a full range of evidence-based treatments tailored to the number, location and severity of lesions.

Unlike most of the lesions covered elsewhere in our skin lesion service, actinic keratosis is a medical condition rather than a purely cosmetic concern. Treatment is about preventing skin cancer as well as improving appearance. Our approach reflects this: we recommend the most clinically appropriate treatment for your specific situation, which is often field treatment with topical creams rather than laser ablation, and we refer to NHS dermatology where appropriate.

This page covers what actinic keratosis is, the difference between lesion-directed and field treatment, when biopsy is needed, what to expect during treatment, and how much it costs. For an overview of all our skin lesion services, see our hub page. Lesions sometimes confused with actinic keratosis include (also age-related but benign rather than pre-cancerous) and basal cell carcinoma (which warrants different management).

Actinic keratosis treatment is more than a cosmetic procedure for several reasons:

At Centre for Surgery, every AK consultation is with a GMC-registered specialist who confirms the clinical diagnosis, identifies any lesions warranting biopsy, and recommends the most clinically appropriate treatment.

What Is Actinic Keratosis?

Actinic keratosis (also called solar keratosis) is a pre-cancerous skin lesion caused by long-term ultraviolet damage to the outer layer of the skin. The damaged cells (keratinocytes) develop genetic abnormalities that, if not corrected, can eventually progress to invasive skin cancer.

A typical actinic keratosis has these features:

Actinic keratoses do not develop on isolated normal skin. They sit on a background of chronically sun-damaged skin, which typically shows:

This is why "field treatment" — treating the entire affected area, not just visible lesions — often makes more sense than picking off individual AKs one at a time.

The estimated annual rate of progression of any single actinic keratosis to invasive squamous cell carcinoma (SCC) is around 1%. Small numbers, but for patients with many lesions accumulating over years, the cumulative risk becomes meaningful. Once an AK has progressed to invasive SCC, it can grow locally, occasionally invade deeper tissues, and rarely spread to lymph nodes or distant sites.

The clinical principle is that AK progression is preventable with appropriate treatment. Our role is to identify and treat AKs before they become invasive SCC, and to recognise (and refer onward) any lesion that has already become invasive.

Patients sometimes confuse AKs with related but distinct lesions:

More information about actinic keratoses is available from and Primary Care Dermatology Society.

Causes, Risk Factors and Who Develops Actinic Keratosis

Actinic keratosis is the result of cumulative ultraviolet damage to the skin over decades. Several factors influence individual risk.

Both UVA and UVB damage the DNA of keratinocytes in the outer skin layer. Each episode of sun exposure produces a small amount of DNA damage; most is repaired by the cell, but some accumulates over years. Over decades, cells with accumulated DNA damage develop the abnormalities that we recognise clinically as actinic keratoses, and eventually as squamous cell carcinoma. The key point is that AKs are a long-term outcome of years of exposure — not a response to a single episode.

The typical patient is over 50, fair-skinned, with a history of significant sun exposure either occupationally or recreationally. Many present with multiple lesions rather than a single one. Common patterns:

The single most important measure is daily sun protection:

For patients with extensive existing damage, oral nicotinamide (vitamin B3) 500mg twice daily has been shown in randomised trials to modestly reduce new AK formation. Discuss with your GP before starting.

Lesion-Directed Versus Field Treatment: Choosing the Right Approach

The most important treatment decision in actinic keratosis is whether to treat individual visible lesions one at a time (lesion-directed treatment) or to treat an entire area of sun-damaged skin (field treatment). This decision is based on the number and distribution of lesions and the underlying skin damage.

Suitable for patients with one or a few isolated AKs on otherwise relatively normal skin. The treatment options include:

For patients with one or two lesions, lesion-directed treatment is straightforward and effective. The clearance rate for single AKs is high (typically 80–95% depending on technique).

The principle of field treatment: in a sun-damaged area, the skin between visible AKs is usually also abnormal at a microscopic level, with sub-clinical pre-cancerous changes that will eventually become new AKs. Treating the field reduces both current lesions and future ones.

Why field treatment is often more appropriate for multiple AKs:

The main field treatments:

What field treatment looks like in practice:

Patients applying 5-FU or imiquimod typically experience progressive redness, crusting and inflammation across the treated area over 2–4 weeks. This is the visible sign of the treatment working. After completing the treatment course, the inflammation settles over the next 4–6 weeks, leaving improved skin with fewer AKs and a smoother appearance. The interim period — when the skin looks visibly inflamed — can be socially noticeable, and we discuss timing with patients to minimise impact.

The decision is made together with you at consultation, based on:

For many patients with extensive disease, the most cost-effective and clinically appropriate plan combines initial lesion-directed treatment of thicker AKs with subsequent field treatment of the surrounding area.

Erbium YAG Laser and Cryotherapy at Centre for Surgery

For patients with isolated AKs or thicker hyperkeratotic lesions warranting in-clinic procedures, we offer cryotherapy and erbium YAG laser ablation.

Liquid nitrogen at -196°C is applied to the lesion via a spray gun or cotton-tipped applicator for a controlled freeze-thaw cycle. The freezing damages the abnormal cells, which then slough off as a small blister and scab over the following 1–2 weeks.

Cryotherapy is well-suited to thicker hyperkeratotic AKs where field treatment alone would not penetrate adequately, and to isolated lesions on the trunk, limbs and scalp where cosmetic precision is less critical.

Erbium YAG laser at 2940nm is strongly absorbed by water in the skin, allowing very precise layer-by-layer ablation with minimal collateral heat. We use the Fotona SP Dynamis platform for this work.

Erbium laser is preferred for cosmetic-sensitive areas (face, lip), patients with skin of colour where pigmentary risk matters, and where multiple lesions are clustered together for efficient single-session treatment.

For patients with thicker AKs sitting on a background of extensive sun damage, the most clinically appropriate plan often combines initial laser ablation of the visible thicker lesions with subsequent field treatment of the surrounding area. This addresses both the immediate visible disease and the underlying sub-clinical changes.

Some patients have asked about full-face erbium or CO2 laser resurfacing for extensive AK. This is an option in selected specialist dermatology settings but is more aggressive than usually needed for AK alone — full-face resurfacing involves significant downtime, pigmentary risk and infection risk. For most patients with extensive AK, topical field treatment achieves similar disease control with less risk and lower cost. We discuss this option openly at consultation but rarely recommend it as first-line.

Cryotherapy is performed without anaesthesia. Erbium laser is performed under topical anaesthetic, with local anaesthetic injection added for larger sessions or sensitive sites. We do not require general anaesthesia for AK treatment.

When Biopsy and Skin Cancer Specialist Care Are Needed

Not every rough scaly patch on sun-damaged skin is a simple AK. Some have already progressed to invasive squamous cell carcinoma (SCC) or are different lesions altogether. Recognising which lesions warrant biopsy rather than direct ablation is the central clinical skill in AK assessment.

Concerning features for invasive SCC rather than simple AK:

These features warrant punch or shave biopsy with histopathology before any destructive treatment. Treating an SCC with cryotherapy or laser is the wrong approach — it destroys the visible lesion but leaves cancer cells behind, delays definitive diagnosis, and can result in advanced disease.

Where biopsy is needed, we perform it under local anaesthetic at our clinic in the same visit as the consultation. The biopsy is typically a small punch or shave taking only a few minutes. The sample is sent to an accredited histopathology laboratory and reported within 7–14 days. The wound heals over 1–2 weeks with a small scar.

If histopathology confirms invasive squamous cell carcinoma, basal cell carcinoma, or another skin cancer, this is no longer a cosmetic concern but a medical diagnosis that warrants skin cancer specialist care. We:

Cosmetic treatment is appropriate for confirmed simple AK. For anything that might be more, biopsy first. We err on the side of caution because the clinical consequences of missing an invasive cancer are significant. Patients sometimes ask why we cannot just laser an unusual-looking lesion "to be on the safe side". The answer is that destruction without diagnosis is the worst of both worlds — it removes the immediate visible lesion but leaves us blind to whether deeper cancer cells remain, with no histopathology specimen to confirm what we have treated.

Your Actinic Keratosis Treatment Consultation

Actinic keratosis consultations at Centre for Surgery take place at our Baker Street clinic in Marylebone. The consultation lasts approximately 30 minutes and includes assessment of all your AKs plus general skin examination of sun-damaged areas.

The consultation is with a GMC-registered specialist. We take a focused history covering when you first noticed the lesions, your sun exposure history, family history of skin cancer, your skin type, any previous treatment, and any general medical context including immunosuppression. We then examine the lesions clinically — counting them, mapping their distribution, identifying any with concerning features, and assessing the surrounding skin damage. Dermoscopy is used where helpful.

For confirmed simple AKs, we explain:

For lesions where biopsy is needed first, we explain the reason and arrange the biopsy at the same visit where you wish.

Actinic keratosis treatment is part of NHS care. We work alongside your GP rather than competing with them. Our typical approach:

The consultation fee is £100, fully redeemable against the cost of any treatment booked. There is no obligation to proceed.

How Much Does Actinic Keratosis Treatment Cost in London?

Actinic keratosis treatment pricing depends on the technique used and the number of lesions or extent of field treated.

All quoted prices are "from" prices and cover the procedure or consultation, anaesthetic where used, dressings, and follow-up review. Topical field treatment fees include initial prescription, written treatment plan, and review during and after the treatment course.

The consultation fee is £100, fully redeemable against the cost of any treatment booked.

Where biopsy is performed, histopathology is charged separately by the laboratory and paid directly by the patient — typically £150 to £350 depending on complexity. We provide an estimate at consultation.

Topical field treatment medications (5-FU, imiquimod, diclofenac) are obtained separately through pharmacy, usually with a private prescription. Approximate medication costs: 5-FU cream £30–£60 per course; imiquimod cream £100–£200 depending on regimen; diclofenac gel £30–£50.

Actinic keratosis treatment is covered by the NHS. Patients on a budget should consider NHS dermatology referral through their GP as the first option. We provide private treatment as an alternative for patients wanting faster access, more individual time, or specific erbium laser treatment for cosmetic-sensitive areas.

Most AK treatment courses fall below the £1,500 finance threshold. For patients with extensive disease requiring multiple sessions or combined approaches above £1,500, 0% APR finance is available through our finance partner Chrysalis Finance.

Aftercare and Recovery After Actinic Keratosis Treatment

Aftercare varies with the technique used. Topical field treatment has the most distinctive recovery profile.

The treated area initially stings briefly. Within hours, a small blister may develop, followed by a scab over 2–3 days. The scab separates over 7–14 days. Apply a thin layer of soft white paraffin (Vaseline) twice a day to keep the area moist. Keep the area dry for the first 24 hours, after which gentle showering is fine. Avoid picking at the scab.

Most patients return to work the same day. Avoid swimming and saunas for 1 week. Apply SPF 50+ daily over the treated area for at least 6 weeks.

Each treated point forms a small crust within 24–48 hours that separates over 5–10 days. Apply a thin layer of soft white paraffin (Vaseline) twice a day. Mild redness around the treated area is normal and fades over 2–4 weeks.

Most patients return to work the same day. Avoid makeup over the treated area for 24–48 hours, swimming and saunas for 1 week, and direct prolonged sun exposure for at least 6 weeks. Apply SPF 50+ daily.

Field treatment with 5-FU or imiquimod cream produces significant inflammation as part of the treatment working. Expect:

This inflammatory phase is the visible sign of the treatment working. It can be socially noticeable. Some patients find it helpful to start treatment during a period when they have fewer face-to-face commitments. Use bland emollient (Vaseline, Aveeno, Cetraben) to manage dryness; avoid active skincare ingredients during the treatment phase.

Sun protection during active topical treatment is essential — the treated skin is more sun-sensitive and UV exposure can worsen the inflammation. After completion of any AK treatment, lifelong daily SPF 50+ sun protection on sun-exposed skin is the foundation of preventing new AKs and skin cancer.

Patients with AKs have ongoing risk of new lesions and skin cancer development. We recommend:

Contact us on if you experience: increasing pain or swelling beyond the expected treatment response; redness spreading well beyond the treated area; pus discharge; fever; severe inflammation that you cannot tolerate; or a new lesion appearing during or after treatment. Severe reactions to topical field treatment may need pause and review.

Why Choose Centre for Surgery for Actinic Keratosis Treatment

Centre for Surgery is a CQC-regulated cosmetic surgery clinic at 95–97 Baker Street in Marylebone. Actinic keratosis treatment is part of our skin lesion service, led by GMC-registered specialists.

The most important reason to have AK treated by a medical specialist is the need to identify any lesions that are not simple AK — including invasive squamous cell carcinoma, basal cell carcinoma, and other lesions warranting biopsy and skin cancer specialist care. We assess every lesion clinically, biopsy where indicated, and refer onward where appropriate. We do not laser anything we are uncertain about.

For patients with multiple AKs across an area of sun-damaged skin, field treatment with topical creams is often more clinically appropriate than treating individual lesions with laser. We tell patients this honestly, even though field treatment is less profitable for us than laser. The right treatment matters more than maximising private treatment income.

We offer cryotherapy, erbium YAG laser ablation, topical field treatment supervision, biopsy, and onward referral for photodynamic therapy or specialist dermatology care. The treatment plan is built around your specific clinical picture, not around the only modality the clinic happens to offer.

Actinic keratosis is an NHS-covered condition. We work with your GP rather than competing — referring back for NHS prescription where appropriate, communicating with NHS dermatology where care is shared, and never recommending private cosmetic treatment for a lesion that warrants NHS skin cancer specialist care.

Our Baker Street clinic is regulated by the Care Quality Commission. CQC regulation covers our consulting rooms, procedure rooms, laser safety, decontamination, infection control, staff training and clinical governance.

Although AK is more common in fair-skinned patients, it does occur in patients with skin of colour, particularly those with significant sun exposure. For these patients, erbium laser is preferred over cryotherapy because of lower pigmentary risk, and pigment-protective aftercare is part of the standard plan.

We treat patients with AK as patients at long-term risk of skin cancer, not just as cosmetic problems. Sun protection guidance, surveillance recommendations, and onward referral where appropriate are part of the routine service rather than optional extras.

Our pricing is published on this page. Cryotherapy, laser, biopsy, and field treatment supervision are all clearly priced. Histopathology is charged separately by the laboratory and we tell you this up front. There are no hidden charges. Where NHS treatment is the right choice, we say so.

Useful Resources

The following organisations publish reliable patient information about actinic keratosis, sun protection and skin cancer.

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