CO₂ Laser Aftercare: What to Do in the First Two Weeks

The laser itself takes minutes. The next two weeks are yours.

What you do at home while your skin heals shapes how comfortable recovery feels, how smoothly the new surface forms, and how well you avoid the complications that are easiest to prevent. Our CO₂ resurfacing guide describes what your skin will look like each day. This article covers what you'll actually do, and why each step matters.

One note before the details. You'll leave your appointment with written instructions chosen for your skin, your treatment depth, and your history. If anything here differs from those instructions, follow what we gave you.

Why aftercare matters as much as the treatment

Fractional CO₂ creates thousands of tiny treated columns in the skin and leaves the skin between them intact. That untreated skin does the rebuilding. Your job during recovery is to give it a clean, protected environment to work in.

Most avoidable problems after resurfacing come from a few sources: infection, irritation, picking, and sun exposure. Good aftercare is mostly about keeping those four out of the way.

How much aftercare you need depends on depth. A lighter CoolPeel treatment usually asks for a shorter, simpler routine. Deeper resurfacing asks for more care over a longer stretch.

The first few days: clean, moist, and left alone

Freshly treated skin can feel hot, tight, and swollen, much like a strong sunburn. It may ooze a little early on. This is expected.

During this stage, your routine will usually include three things:

Gentle cleansing on the schedule we give you, with clean hands and lukewarm water. No scrubbing, no washcloths, no cleansing brushes.
A protective layer applied as directed, to keep the surface from drying out while it heals.
Rest for your skin. Avoid touching your face except to cleanse and apply what we've recommended.

Swelling is often most noticeable in the first couple of mornings. Sleeping with your head slightly raised can help, especially if the area around your eyes was treated.

When the skin starts to flake: let it go on its own

As the treated surface renews, it will darken slightly, feel rough, and begin to flake or shed. This is often the stage people find hardest to leave alone.

Leave it alone anyway. Pulling off flaking skin before it is ready can expose new skin too early and raise the risk of pigment changes or scarring. Keep the area moisturized as instructed, and let the shedding finish on its own schedule.

Sun protection is not optional

Healing skin is especially vulnerable to UV, and pigment that forms during recovery can be harder to treat than what you came in for. That's one reason we schedule resurfacing in the lower-UV months.

Lower UV isn't no UV. During recovery:

Stay out of direct sun as much as you reasonably can, including through car and office windows.
Wear a wide-brimmed hat when you do go out.
Start sunscreen when we tell you your skin is ready for it, then use it every day, generously, and reapply.

What to pause while you heal

Some things that are fine for healthy skin can irritate or slow healing skin. Unless we've told you otherwise, plan to pause:

Retinoids, exfoliating acids, vitamin C, and other active products
Scrubs, devices, and any at-home exfoliation
Makeup, until the surface has closed and we've cleared you
Heavy sweating, hot yoga, saunas, and hot tubs
Swimming pools and lakes

We'll tell you when to bring each of these back.

If you've ever had a cold sore

Tell us, even if it has been years. Laser treatment around the mouth can trigger cold sore reactivation. When there's a history, a preventive antiviral medication may be prescribed before and after treatment. This is part of why we ask about your medical history during your consultation.

What's normal, and when to call us

Redness, swelling, warmth, tightness, itching, and flaking are all expected parts of healing. Pinkness can last for weeks as the new skin matures. Small white bumps called milia can also appear.

Call us rather than waiting if you notice:

Pain that increases instead of easing
Yellow crusting, discharge, or an unpleasant odor
Fever or feeling unwell
A cluster of small blisters or sores, especially near your mouth
Darkening patches as your skin settles

We would rather hear from you early. Most concerns are simple to answer, and the ones that need attention are easier to manage when caught quickly.

After the first two weeks

Once the surface has healed, recovery becomes quieter. Redness fades gradually, and the collagen response continues over the following months. That is when much of the lasting change develops.

This stage still matters. Daily sunscreen, a gentle routine, and reintroducing active products only when we say so help protect the result. We'll also talk about timing for your next treatment, if one is part of your plan. For some people, the right next step is a lighter maintenance treatment. For others, it's simply time.

If you're considering CO₂ and want to know what recovery would look like for your skin and your schedule, that's a conversation for a consultation. Bring your calendar.