Guide · CO2 laser downtime
CO2 laser downtime what recovery looks like, day by day
Fractional CO2 laser changes scars more than gentler lasers, and it asks more of your recovery. Here is what the skin usually looks like from the first night to three months later, what is normal and what is not, and how to plan work, make-up and sun around it in Singapore's heat.
Quick answer
- CO2 laser downtime is usually about a week. After fractional CO2 the skin feels hot and tight for a day or two, swelling peaks over the first three days, and fine brown crusts flake off by about day five to seven, leaving pink new skin that fades over two to four weeks.
- Expected changes include a sunburn-like glow, pinpoint oozing on the first day, swelling that is worse around the eyes in the morning, a bronzed, sandpapery look as the crusts form, and itch as they shed. Pain that increases after day two, yellow crusts or pus, clusters of painful blisters, or redness still strong after a month are reasons to call the doctor.
- In Asian skin the main risk is post-inflammatory hyperpigmentation (PIH), temporary darkening that tends to show in the weeks after the crusts shed. In nine Chinese patients it affected 55.5% at one month and 11.1% at six months, so sun protection, no picking and the doctor's aftercare matter as much as the settings.
- At IN Eternity Clinic, Pacific Plaza, Dr Sin Yong performs fractional CO2 as S3 Resurfacing on the DEKA Tetra Pro, priced at consultation, with aftercare written for your plan. SkinRev Lab at CityLink Mall does not perform lasers.
Why it varies
What decides how long CO2 laser recovery takes
Fractional CO2 laser light, at 10,600 nm, is absorbed by water in the skin. Each microbeam vaporises a narrow column of tissue and leaves a thin rim of heated tissue around it, while bridges of untouched skin between the columns let the surface close within about a week, far sooner than older full-surface resurfacing.
How long your own recovery takes depends mostly on depth, density and the number of passes. A light pass for texture settles faster than deep point-shots into acne or surgical scars. The neck, chest and limbs are treated more gently than the face because they have fewer oil glands and hair follicles to heal from, and reviews note that complications are more likely on sensitive areas and in darker skin types.
At IN Eternity Clinic, Dr Sin Yong's S3 Resurfacing on the DEKA Tetra Pro places deeper single shots into individual scar pits, then passes fractionally over the surrounding skin. When it is combined with subcision in his 4D Scar Reconstruction protocol, bruising can take up to two weeks to fade, so ask which steps are planned before you book time off.
Day by day
CO2 laser downtime, day by day
The timeline below is the usual course after a fractional CO2 treatment of the face. It is a guide, not a promise: deeper scar work, larger areas and the neck or body can take longer. If your skin is clearly worse, or slower, than you were told to expect, contact the clinic rather than waiting it out.
| Time after treatment | What the skin usually looks like | How it feels | What helps |
|---|---|---|---|
| Day 0 to 1 | Red like a strong sunburn; pinpoint oozing or tiny dots; swelling starts | Hot, tight and stinging for several hours | Cool packs wrapped in a clean cloth; only the ointment you were given; sleep slightly propped up |
| Days 2 to 4 | Swelling peaks, often around the eyes in the morning; the skin turns bronzed and sandpapery as micro-crusts form | Tight and dry; the heat eases | Gentle cleansing as instructed; keep the ointment on; stay cool indoors; no picking |
| Days 5 to 7 | Fine brown crusts flake off and pink new skin shows | Itchy as the crusts shed | Let flakes come away on their own; move to a bland moisturiser when advised |
| Weeks 2 to 4 | Pinkness fades; the skin may look smoother and slightly shiny | Sensitive to heat, sweat and new products | Daily sunscreen, shade and a hat; restart actives only when cleared |
| Months 1 to 3 | Texture keeps improving as collagen remodels; watch for new dark patches | Usually back to normal | Review with the doctor; photos in the same light show change better than the mirror |
The first week
Aftercare in the first week, in Singapore's heat
In the first week the goal is to keep the treated skin clean, moist, cool and undisturbed while it closes. Aftercare depends on the settings and the area, so the written instructions from your clinic come first; the list below reflects common practice after resurfacing.
Singapore adds its own problems. Heat and sweat sting healing skin and can trigger breakouts under ointment, hours in air-conditioning dry it out, and the midday UV index is often very high or extreme. Plan to stay mostly indoors for the first few days and keep your commute short.
- Wash your hands before touching your face, and cleanse as instructed with lukewarm water and a mild, fragrance-free cleanser; pat dry.
- Keep a thin layer of the recommended ointment on, so the crusts stay soft rather than cracking.
- Do not pick, rub or peel crusts; picking raises the risk of infection, scarring and dark marks.
- Use cool packs wrapped in cloth for heat and swelling, and sleep with your head slightly raised.
- Skip make-up, retinoids, exfoliating acids, scrubs and fragranced products until the skin has closed and your doctor agrees.
- Avoid saunas, hot yoga, hard workouts, swimming pools and the sea while there are open areas or crusts.
- Use a clean pillowcase, keep hair products off the area, and keep pets off your pillow.
Normal or not
What is normal, and when to call the doctor
Most reactions after fractional CO2 ease a little each day, so the direction of travel matters more than any single symptom. Skin that is improving is usually on track; skin that is getting worse after the second day needs a check, even if your review is days away.
Large clinic series give a sense of scale. Across 490 deep fractional CO2 treatments in skin types I to IV, adverse events followed 13.6%: acne-like breakouts in 5.3%, cold sore outbreaks in 2.2%, bacterial infection in 1.8%, yeast infection in 1.2%, darkening in 1.2% and redness beyond a month in 0.8%. A second series of 373 treatments found contact or allergic dermatitis, often from products, in 4.6%. Both studied mainly lighter skin; darkening is more common in Asian skin.
| Sign | Usually normal when | Call the clinic when |
|---|---|---|
| Redness | It fades from fiery to pink over two to four weeks | It is still strong after a month, or patches stay bright red and firm |
| Swelling | It peaks in the first three days, more around the eyes | It keeps increasing after day three or closes an eye |
| Pain and heat | Sunburn-like heat eases over a day or two | Pain, heat or tenderness increases after day two |
| Crusts | Fine brown or bronzed crusts shed by about day five to seven | Crusts turn yellow or honey-coloured, ooze pus or smell |
| Blisters | None expected | Clusters of small painful blisters or sores appear, often near the lips |
| Spots | A few small pimples or milia under the ointment | Breakouts are widespread or painful |
| Itch or rash | Mild itch as the crusts shed | An itchy rash or hives appear after a new product |
| Colour | Pinkness fading steadily | New dark or pale patches appear in the weeks after |
Cold sores and infection
Cold sores and infection: the first-week risks
For the first few days the treated skin is an open barrier, which is why infection and cold sores are the complications doctors watch most closely in week one. Herpes simplex, the cold sore virus, can reactivate after resurfacing, especially in people who have had cold sores before, and on raw skin it can spread more widely than a usual cold sore.
Tell the doctor before treatment if you have ever had cold sores; preventive antiviral medicine may be prescribed. Afterwards, watch for clusters of small painful blisters or punched-out sores, often near the lips, and for signs of bacterial infection: rising pain or heat, yellow crusts, pus, a bad smell or spreading redness. These need prompt review at the clinic, not home remedies.
Seek urgent medical care, rather than waiting for a call back, for a fever with spreading redness, rapidly worsening swelling, or any eye pain or change in vision. Prescription medicines such as antivirals or antibiotics are prescribed by Dr Sin Yong at IN Eternity Clinic when appropriate; SkinRev Lab does not prescribe.
Asian skin
PIH after CO2 laser in Asian skin
Post-inflammatory hyperpigmentation (PIH) is darkening that appears after skin has been inflamed or injured. After fractional CO2 it tends to show in the weeks after the crusts have shed, often as a brown cast over the treated area that can look as if the laser has made things worse. In most people it fades over months, but it can hide the improvement in the meantime.
It is common in Asian skin. In a study of nine Chinese patients after one full-face fractional CO2 treatment, PIH was seen in 55.5% at one month and 11.1% at six months. In a split-face trial of 40 Thai patients with skin type IV, PIH followed on 75% of the sides cared for with petroleum jelly alone, compared with 40% where a strong steroid ointment was applied for the first two days, and it was lighter and smaller on those sides. That is one reason your aftercare may include a prescription cream; use only what your doctor prescribes.
- Do not have CO2 laser while tanned or sunburnt; treatment is usually postponed.
- Tell the doctor if you darken easily after spots, insect bites or earlier treatments.
- Keep out of direct sun, and use sunscreen daily once the skin has closed, with shade, a hat or an umbrella.
- Do not pick, scrub or rub crusts, and avoid heat and friction in the first days.
- Report new darkening early; the doctor may adjust your creams or the timing of the next session.
- Do not try to peel or bleach dark patches yourself.
Getting back to normal
Make-up, exercise and sun after CO2 laser
These are common timings after a face treatment, not rules. Your doctor may advise differently depending on the depth, the area and how your skin responds, and that advice comes first.
| Activity | Usual timing after fractional CO2 |
|---|---|
| Desk work from home | Often from day two or three, if you do not mind being seen on video calls |
| Back in the office or out socially | Usually after about a week, once the crusts have shed |
| Make-up | Once the skin has closed and your doctor agrees, often between one and two weeks; it can then cover the pinkness |
| Gym, running and heavy sweating | After the crusts have shed and your doctor agrees, roughly a week; start gently |
| Swimming, sauna and hot yoga | Only when the skin is fully closed and calm, often about two weeks |
| Retinoids, acids and scrubs | Restart only when your doctor says the skin has recovered, often after a few weeks |
| Facials, waxing or threading on the area | Not until the skin has fully settled, usually several weeks |
| Beach holidays and deliberate sun | Avoid for at least the first month; book treatment after a trip, not before |
Planning
Planning work and social downtime in Singapore
Most people need one quiet week for the visible part of recovery, then two to four weeks of pinkness that make-up can usually cover. Swelling peaks over the first three days, so a Thursday or Friday treatment puts the puffiest days over a weekend, and the bronzed, flaking stage is easier if you can work from home for a few days after.
Leave more room before anything that will be photographed. Pinkness can last a month and PIH tends to show in the weeks after the crusts shed, so many people plan a CO2 session at least four to six weeks before a wedding, a big presentation or festive visiting, and keep the following month free of beach holidays.
- Ask how many days of crusting to expect with your settings, and whether subcision or other steps will add bruising.
- Book the session after, not before, a sunny holiday or an outdoor event.
- Line up a week of indoor plans, groceries and a clean pillowcase in advance.
- Plan the commute: shade, a hat or an umbrella, and as little midday sun as possible.
- If a course is planned, ask how far apart the sessions are so your calendar fits.
Results
When CO2 laser results show, and how many sessions
The first week is about healing, not results. Early smoothness after the crusts shed is partly swelling settling; the real change comes from collagen remodelling, which carries on for months. In an early study of fractional CO2 on human forearm skin, the collagen-remodelling response was still present three months after treatment.
Improvement often keeps building after that. In a split-face trial of 24 Asian patients with acne scars who had two treatments two months apart, results improved significantly between one and six months after the final session, and fractional CO2 and erbium lasers gave comparable results, with CO2 the more uncomfortable. Judge progress with photos taken in the same light, not the mirror the following week.
Most scar plans need more than one session, spaced several weeks apart so the skin can recover and remodel in between. The number depends on the scar type, its depth and your skin, and is planned at consultation. No laser turns a scar back into untouched skin, and individual results vary.
Where to go
Fractional CO2 laser in our network
Fractional CO2 is a medical laser treatment. At IN Eternity Clinic, 9 Scotts Road, #12-01 Pacific Plaza, beside Orchard MRT, Dr Sin Yong assesses each scar and your skin type, performs S3 Resurfacing on the DEKA Tetra Pro, and explains the expected downtime for your plan before you book. It is priced at consultation by the clinic; WhatsApp +65 8815 3008.
SkinRev Lab, at CityLink Mall #B1-28 by City Hall MRT, does not perform lasers and passes laser enquiries to the clinic. Once your doctor has cleared your skin, which is weeks rather than days after CO2, SKINLDM (S$288 with a basic facial, first session S$68, before GST) is a 30-minute calming option for sensitive skin; it supports comfort and hydration but does not treat scars or pigment. If you cannot take a week off, SKINTIGHT microplasma is a lighter-downtime option for surface texture, compared fairly in the guide below.
Sources
References & sources
- Chan NP, Ho SG, Yeung CK, Shek SY, Chan HH. Fractional ablative carbon dioxide laser resurfacing for skin rejuvenation and acne scars in Asians. Lasers Surg Med. 2010;42(9):615-623.
- Cheyasak N, Manuskiatti W, Maneeprasopchoke P, Wanitphakdeedecha R. Topical corticosteroids minimise the risk of postinflammatory hyper-pigmentation after ablative fractional CO2 laser resurfacing in Asians. Acta Derm Venereol. 2015;95(2):201-205.
- Shamsaldeen O, Peterson JD, Goldman MP. The adverse events of deep fractional CO2: a retrospective study of 490 treatments in 374 patients. Lasers Surg Med. 2011;43(6):453-456.
- Campbell TM, Goldman MP. Adverse events of fractionated carbon dioxide laser: review of 373 treatments. Dermatol Surg. 2010;36(11):1645-1650.
- Metelitsa AI, Alster TS. Fractionated laser skin resurfacing treatment complications: a review. Dermatol Surg. 2010;36(3):299-306.
- Hantash BM, Bedi VP, Kapadia B, et al. In vivo histological evaluation of a novel ablative fractional resurfacing device. Lasers Surg Med. 2007;39(2):96-107.
- Manuskiatti W, Iamphonrat T, Wanitphakdeedecha R, Eimpunth S. Comparison of fractional erbium-doped yttrium aluminum garnet and carbon dioxide lasers in resurfacing of atrophic acne scars in Asians. Dermatol Surg. 2013;39(1 Pt 1):111-120.
Common questions
Your questions,
answered
How long is the downtime after CO2 laser?
Plan for about a week. The skin feels hot and tight for a day or two, swelling peaks over the first three days, and fine crusts flake off by about day five to seven. Pinkness then fades over two to four weeks and can usually be covered with make-up once the skin has closed.
What does skin look like 3 days after CO2 laser?
Usually swollen, especially around the eyes in the morning, with a bronzed, rough, sandpapery surface as tiny crusts form, and it feels tight and dry. That is expected. Rising pain, yellow crusts or pus are not, and need a call to the clinic.
When can I wear make-up after CO2 laser?
Once the skin has closed and your doctor agrees, often between one and two weeks after treatment. Before that, make-up can trap bacteria in healing skin. When you start, use clean brushes and gentle, fragrance-free products.
Why is my skin turning brown after CO2 laser?
In the first week a bronzed look is normal: it is the tiny crusts of treated tissue, which shed by about day five to seven. Darkening that appears or spreads in the weeks after the crusts have gone is more likely to be PIH, which is common in Asian skin and usually fades over months. Tell your doctor early.
When can I go back to work after fractional CO2?
Desk work from home is often possible from day two or three. Most people return to the office or social plans after about a week, once the crusts have shed, using make-up over the remaining pinkness when the doctor agrees.
How can I speed up CO2 laser recovery?
You cannot rush healing, but you can avoid slowing it: keep the skin moist with the ointment you were given, do not pick, stay cool, sleep slightly propped up, avoid sweating and sun, and skip actives until cleared. Picking and sun are the commonest reasons recovery drags on or darkens.
When should I worry after CO2 laser?
Call the clinic if pain, heat or swelling increases after day two, if crusts turn yellow or ooze pus, if clusters of painful blisters appear, if redness is still strong after a month, or if new dark or pale patches develop. A fever with spreading redness, or any eye symptoms, needs urgent care.
How long does redness last after CO2 laser?
Strong redness eases over the first week, and pinkness usually fades over two to four weeks after a face treatment. Deeper settings, the neck and the body can take longer. Redness lasting beyond a month is uncommon and worth a review.
How much does CO2 laser cost in Singapore?
It depends on the area, the number and type of scars, and whether steps such as subcision are combined. At IN Eternity Clinic, S3 Resurfacing is priced at consultation after Dr Sin Yong has assessed you. When comparing, weigh the downtime and the likely number of sessions, not just one visit.