Intimate Wellness & Regenerative Gynaecology in Dublin | EC Clinic

Why does the sun matter so much for laser treatments?

Because a laser works by causing controlled, deliberate injury, and skin that is healing is not the same skin you walked in with.

Fractional CO2 resurfacing sends a grid of microscopic columns of energy into the skin. Each column vaporises a tiny channel of tissue and leaves a surrounding zone of controlled heat. The untreated skin between those columns is what allows fast healing: it acts as a reservoir of healthy cells that migrate across and close the surface within days. Underneath, the heat triggers a wound-healing cascade that recruits fibroblasts and lays down new collagen over the following months.

During the first phase of that process, two things are true at once. The skin barrier is temporarily reduced, so the skin loses water more easily and is more reactive. And the melanocytes, the pigment-producing cells, are in an activated inflammatory environment. Add ultraviolet light to that combination and you get the one complication that frustrates patients most: post-inflammatory hyperpigmentation, which is patchy darkening that can take months to settle.

This is not a small technical footnote. It is the single most controllable risk factor in the whole treatment, and the patient controls most of it. That is why I would rather move a treatment date than treat someone who is about to spend two weeks in strong sun.

What makes autumn and winter the ideal window in Ireland?

Ireland gives us a genuinely favourable calendar. The Irish Skin Foundation and Met Éireann both advise that sun protection matters most from April to September, when sunburn-producing UV is at its strongest, and that UV is highest in the middle of the day, roughly between 11am and 3pm. Met Éireann publishes the UV index within its forecasts through the brighter months for that reason.

From late September onward the sun sits lower, its rays travel further through the atmosphere, and the daily UV index in Dublin falls to low levels for months at a time. That is the window. It is long, it is predictable, and it coincides with the season when most people are indoors anyway, wearing more clothing and taking fewer holidays in strong sun.

There is a second, more practical advantage. Recovery is simply more comfortable in cool weather. Freshly treated skin feels hot and tight, and heat, humidity and sweat make that worse. An Irish October is, from a purely dermatological point of view, a very forgiving place to heal.

And there is a third advantage that I think is underrated: time. New collagen is not instant. Remodelling continues for three to six months after a resurfacing session, and courses of treatment are usually spaced weeks apart. If you start in October, your skin has finished the quiet work by the time spring arrives. If you start in May, you are asking your skin to heal in the highest UV months of the Irish year and then judging the result before it has matured.

• October to March: low UV, cooler recovery, no holiday conflicts. Ideal.
• April and September: transitional. Possible with strict photoprotection and careful planning.
• May to August: highest UV in Ireland. I generally postpone ablative resurfacing, or reduce depth significantly.

What does CO2 laser resurfacing actually treat?

CO2 resurfacing is one of the most studied technologies in aesthetic dermatology, and it is used for structural change rather than surface polish. At EC Clinic in Dublin it is delivered under medical assessment as CO2 laser resurfacing, and the realistic list of what it addresses is this:

• Skin texture and roughness, including enlarged-looking pores.
• Fine lines, particularly around the eyes and mouth.
• Photoageing, which is the cumulative sun damage that shows as dullness, laxity and irregular tone.
• Uneven pigmentation and sun spots, when correctly assessed and combined with the right preparation.
• Certain scars, including atrophic acne scarring and some surgical or stretch mark scarring.

What it does not do is replace surgery. Resurfacing improves the quality and thickness of the skin envelope. It does not lift deep structural sagging, it does not replace lost facial volume, and it will not correct pigmentation that is hormonal in origin without addressing the hormones behind it. Melasma is the clearest example: it is driven by hormonal and photic factors together, it is prone to rebound, and treating it aggressively with an ablative laser can make it worse. In those cases I say so, and we build a different plan.

I should also be explicit about something patients rarely hear in a beauty setting. Resurfacing is a medical procedure with a medical risk profile. Prolonged redness, infection, herpes reactivation, delayed healing and pigmentary change are all documented. They are uncommon in appropriately selected patients with correct aftercare, and that phrase, appropriately selected, is doing a lot of work. It is the whole reason a consultation exists.

Does my skin tone change the advice?

Yes, significantly, and this matters in Dublin more than in many European cities because the women who come to my clinic come from everywhere.

Skin is commonly classified using the Fitzpatrick scale, which describes how skin responds to ultraviolet light, from very fair skin that burns easily to deeply pigmented skin that rarely burns. Richer skin tones have more active melanocytes, and they respond to inflammation by producing pigment. The consequence is straightforward: the higher the Fitzpatrick type, the higher the risk of post-inflammatory hyperpigmentation after any ablative or fractional treatment.

That does not mean laser is off the table. It means the plan changes. In practice, for richer skin tones I use lower density and more conservative depth, I often prime the skin for several weeks beforehand, I space sessions further apart, and I am far stricter about photoprotection during the healing phase. The result can be excellent. It simply requires a doctor who assesses your skin type before choosing settings, rather than applying one protocol to everybody.

If you have been told elsewhere that your skin type rules you out, or if you have been offered the same protocol as a very fair-skinned friend, that is a reasonable second opinion to seek.

What does recovery look like, week by week?

Recovery depends on depth and density, so these are ranges rather than promises. Your own plan will be given to you in writing before you commit to anything.

• Days 1 to 3: the skin feels hot, tight and looks red, similar to a strong sunburn. Swelling is common, particularly around the eyes, and is usually at its peak in the first 48 hours. Bland occlusive care and gentle cleansing only.
• Days 3 to 7: the surface begins to renew. You may see fine bronzing, pinpoint crusting and flaking as the treated columns shed. This is the phase people mean when they say downtime. Do not pick, do not exfoliate, do not use active ingredients.
• Week 2: most people are comfortably back to normal social routines. A pink flush may persist and is easily covered once the barrier has closed.
• Weeks 3 to 12: the quiet phase. Nothing dramatic is visible, but fibroblast activity and collagen deposition are at their peak.
• Months 3 to 6: the result matures. Texture, firmness and tone continue to improve gradually. This is why I ask patients not to judge their result at week three.

Throughout all of it, broad-spectrum SPF is not optional, and this is where Irish patients often push back. It is cloudy, they say, and it is November. Two facts answer that. UVA, the wavelength most associated with photoageing and pigment stimulation, penetrates cloud and passes through window glass, so a desk beside a window or a long commute still delivers exposure. And healing skin is more reactive to lower doses than intact skin is. The Irish Skin Foundation recommends a broad-spectrum sunscreen of at least SPF 30 with high UVA protection for adults, reapplied regularly. For skin that is actively remodelling, I ask for that daily, all winter.

How should I plan a course so my skin is ready by spring?

Work backwards from the result you want, not forwards from the day you booked.

A realistic plan for someone who wants visibly better skin quality by late spring looks like this. Consultation and assessment in August or September, including a review of your medications, your history of cold sores, your pigmentation history and any previous treatments. Preparation of the skin for two to six weeks where indicated. First session from late September or October. Subsequent sessions spaced according to the depth used and how your skin responds. Then a maturation window through the winter, with the final assessment in spring.

If you also want firmness and contour rather than skin quality alone, autumn is the natural moment to discuss whether resurfacing should be combined with, or sequenced against, a treatment such as laser endolifting, which works beneath the skin rather than on its surface. The two do different jobs, and combining them well is a matter of sequence and timing, not of buying more.

Who should not have laser resurfacing right now?

An honest contraindication list is a sign of a good clinic, not a nervous one. I would postpone or decline treatment if any of the following apply:

• You are pregnant or breastfeeding.
• You have an active skin infection, active acne inflammation or an active cold sore in the treatment area.
• You have taken oral isotretinoin recently. Timing is individualised and needs to be discussed.
• You have a history of keloid or hypertrophic scarring.
• You have recently had significant sun exposure, or you have a holiday in strong sun booked within the healing window.
• You have active or unstable melasma, or an autoimmune or connective tissue condition affecting healing.
• You are unable or unwilling to commit to daily photoprotection and the aftercare routine. This is not a moral judgement. It is simply that the aftercare is half the treatment.

None of these are permanent exclusions in most cases. They are reasons to change the timing or the plan, which is exactly the sort of decision that should be made by a doctor who is also willing to tell you when the answer is no.

Why does a gynaecologist run an aesthetic clinic?

It is the question I am asked most often, and the answer is the reason EC Clinic exists in the form it does.

Skin is a hormonally responsive organ. Oestrogen influences dermal collagen content, skin thickness and hydration. Collagen loss accelerates in the years around menopause, and skin behaves differently in perimenopause, during pregnancy, on hormonal contraception and after menopause. A patient who arrives asking about dullness and new pigmentation at forty-six is often describing a hormonal transition as much as a skin concern.

As an obstetrician-gynaecologist who also practises aesthetic medicine, I can assess both in one consultation. Sometimes that means treating the skin. Sometimes it means addressing hormones first and treating the skin later, in the right order, for a better and more durable result. That integration is not a marketing line. It is the clinical reason a woman gets a better answer here than she would from two separate appointments that never speak to each other.

Medically reviewed by Dr. Eliana Castañeda, Obstetrician-Gynaecologist and Aesthetic Specialist · 4 August 2026

— Dr. Eliana Castañeda
Obstetrician-Gynaecologist and Aesthetic Specialist