You can start gently cleaning your face within hours of a CO2 laser treatment, but the way you wash matters enormously during the first two weeks. Your skin has essentially been resurfaced, leaving it raw, weeping, and highly vulnerable to infection. The right washing routine keeps the healing zone clean without disrupting the new skin forming underneath.
Start With Vinegar Soaks, Not a Regular Wash
Your first cleaning should happen two to three hours after your procedure, and it’s not a traditional face wash. Instead, you’ll use a diluted white vinegar soak: one teaspoon of white vinegar mixed into two cups of distilled water. Soak a clean cloth in the solution, wring it out slightly, and press it gently onto the treated skin for 30 to 60 seconds. Re-wet the cloth and repeat this pressing motion for about 10 minutes total.
For the first 48 hours, repeat these soaks every two hours while you’re awake. The vinegar creates a mildly acidic environment that discourages bacterial growth on the open, oozing skin. Use a fresh cloth each time to avoid reintroducing bacteria. After those initial 48 hours, your provider will typically have you transition to a gentler routine that alternates between the vinegar soaks and a mild liquid soap wash.
How to Wash During the First Two Weeks
Once you move past the intensive soaking phase, wash your face twice a day with lukewarm water and a gentle cleanser. Each wash should last only 10 to 30 seconds. Use your fingertips with almost no pressure, letting the cleanser and water do the work rather than any rubbing or friction. Pat dry afterward with a clean, soft towel or gauze. Never rub.
Water temperature matters more than you might think. Hot water increases blood flow to the surface and can worsen swelling and redness. Cold water can be a shock to raw tissue. Lukewarm, right around body temperature, is the safest choice throughout recovery.
One important rule during this phase: do not take baths or submerge your face in water. Showers are fine from day one, but soaking in a bath, pool, or hot tub exposes the healing skin to stagnant water and bacteria. Wait until the treated area has fully closed and your provider clears you.
Choosing the Right Cleanser
During the first 7 to 14 days, your cleanser should be fragrance-free, gentle, and completely free of active ingredients. Look for mild foaming cleansers or amino acid-based formulas that clean without stripping moisture. Brands like Cetaphil, CeraVe, and EltaMD are commonly recommended by dermatologists for this stage. If the cleanser label lists ceramides, hyaluronic acid, or niaciamide, those are fine and can actually support the skin barrier as it rebuilds.
What you need to avoid is a longer list. Do not use anything containing retinoids, glycolic acid, salicylic acid, vitamin C, alcohol, or fragrance. Physical scrubs, exfoliating masks, medicated acne washes, and toners with alcohol are all off the table. These ingredients are too aggressive for skin that is actively regenerating and can cause irritation, delayed healing, or even scarring. If you’re unsure about a product, the simplest test is this: if it has any active ingredient designed to “treat” or “exfoliate,” set it aside until your skin has fully recovered.
What to Apply After Washing
Every wash should be immediately followed by a thick layer of occlusive ointment. Petrolatum-based products like Aquaphor are the standard choice, though your provider may give you a specific product. The goal is to keep the healing skin continuously moist. Dry, exposed wounds heal more slowly and are more likely to scar.
Apply the ointment generously enough that the skin looks visibly coated. During the first two weeks, this layer should stay on your face essentially all the time, reapplied after each wash and touched up whenever the skin feels dry or tight. It will feel greasy and look shiny. That’s normal and necessary. The ointment acts as a physical barrier that traps moisture, protects new skin cells, and reduces the formation of thick crusts or scabs.
Resist the urge to let the skin “breathe” or air dry. Open-air healing after CO2 laser leads to worse outcomes. The moist environment created by the ointment is what allows new skin to migrate across the wound surface efficiently.
What to Watch For While Healing
Some oozing, redness, and swelling in the first few days is completely expected. The skin will likely weep a clear or slightly yellow fluid, and a thin crust may form between washes. Gently removing this crust during your twice-daily washes is part of the process.
Signs that something has gone wrong include increasing redness that spreads beyond the treated area, thick green or foul-smelling discharge, worsening pain after the first few days instead of improving, or fever. These can signal an infection that needs prompt treatment. Keeping up with your washing and soaking schedule is the single most important thing you can do to prevent this from happening.
When to Resume Your Normal Skincare
Most people can begin reintroducing active products like retinoids, vitamin C serums, and chemical exfoliants somewhere between 7 and 14 days after treatment, though the exact timeline depends on how aggressively you were treated and how quickly your skin closes. The general rule is to wait until all raw or open areas have fully re-skinned and there is no remaining crusting or oozing.
Even then, reintroduce one product at a time rather than going back to your full routine overnight. Start with the gentlest products first, like a vitamin C serum, and save the strongest actives, like retinoids and glycolic acid, for last. If any product causes stinging, redness, or irritation, pull it back out and give your skin another few days. The new skin forming after CO2 laser is thinner and more sensitive than your original skin was, and it can take several weeks before it tolerates everything it did before.