Is Your Scar Ready for Treatment? How to Judge the Timing

Why a scar's age matters

Maybe you had surgery a few months ago, or a cut, burn or breakout left a mark you see every day. You want it gone, but you are not sure whether it is too soon, or too late, to do something. The answer starts with how scars heal.

After an injury, the skin goes through a long rebuilding stage called remodeling. A 2023 review in the journal Cells says this stage begins 2 to 3 weeks after the injury and can last up to a year or even longer, and a 2025 review describes it as lasting up to 2 years. During that time the scar can change a lot. The American Academy of Dermatology (AAD) says a new flat scar is often pink to reddish and slightly raised at first, then flattens and changes color as it heals. Raised scars also tend to flatten, though that can take months or years.

So a scar that bothers you at three months may look quite different at twelve. Even after scar revision surgery, the American Society of Plastic Surgeons says it can take a year for the new scar to fully heal and fade. The collagen remodeling glossary entry explains what is happening under the skin.

First, the wound has to be closed

Treatment for a scar is treatment for healed skin. An open wound, a scab, stitches still in place or skin that is weeping or infected is not ready. The AAD says even something as gentle as a silicone gel sheet should never go on a scab or open wound. Laser Eraser's surgical scar page says the same about laser: it works on healed scar tissue rather than an open or recent incision.

If your scar came from surgery, your surgeon is still in charge of the wound. Follow their wound-care instructions, ask them when outside scar treatment would be safe, and let them know about anything unexpected, such as spreading redness, fever or the wound opening. Those signs need prompt medical care, not a cosmetic appointment.

Treating early: what the research says about surgical scars

Waiting a full year is not always the plan. The AAD says laser treatment can help prevent a raised scar from forming after surgery, and that silicone can help prevent a raised scar after surgery once the wound has closed. A 2023 review notes that laser therapy is often used on formed raised scars but can also be used in the early weeks after surgery.

One analysis looked closely at timing. A 2025 analysis of 14 controlled trials of fractional carbon dioxide laser on surgical scars found better results when treatment started within about a month of surgery, and no significant benefit in the trials that started more than 3 months after surgery. That finding is about one laser type and a limited number of studies, so it does not mean an older scar cannot improve. The same review cites a study that still found benefit in mature cesarean scars.

For people at higher risk of raised scars, a 2021 review in Plastic and Reconstructive Surgery recommends watching surgical sites closely for 3 to 12 months so a thickening scar can be treated early. If you have had keloids or raised scars before, tell your surgeon before surgery and watch the new scar. The guide raised scar treatments compared lays out the options if one starts to thicken.

Common reasons to wait a little longer

Even a mature scar may need to wait for something else to settle first. These are the most common reasons a careful provider pauses:

• Active acne. The AAD says acne scar treatment typically begins once acne is under control. See acne scar treatments compared for more.
• A tan or sunburn. The AAD says a dermatologist cannot treat a scar with a laser if you have a tan or sunburn, because it could cause a burn or discolor your skin. The summer sun care page has protection tips.
• Pregnancy. Laser Eraser's screening notes that pregnancy means waiting before elective treatment.
• Some skin products and medicines. The AAD suggests stopping retinoid or glycolic acid skin products for 2 to 4 weeks before laser treatment, and telling your provider about every medicine and supplement. For acne scars, mention any acne treatment used in the past two years.
• Smoking and cold sores. The AAD recommends quitting smoking for at least 2 weeks before laser treatment and taking medicine to prevent cold sores if you are prone to them.

When to see your surgeon or a dermatologist first

A cosmetic laser practice is the wrong first stop in some situations. See your surgeon if your surgical scar is still under their care or healing in a way that worries you. See a dermatologist if a scar is growing quickly, bleeding, very painful, changing in color or shape, or if a raised scar keeps spreading past the edges of the wound. The guide keloid vs. hypertrophic scar explains that difference.

The AAD adds an important warning: if you see a scar and do not remember injuring your skin, make an appointment with a dermatologist right away, because skin cancer can sometimes look like a scar. The AAD also says a dermatologist can tell you whether a scar is likely to fade with time and when to treat it to get the most from treatment.

Your next step

If your wound has closed, nothing on the wait list applies, and the scar still bothers you, a consultation is a sensible next step. At Laser Eraser, consultations are free, a licensed medical provider examines the scar, and a physician screens for pregnancy, active infection, a recent tan or sunburn and certain medicines before treatment. The laser scar removal page shows which scar types the practice treats.

Bring your surgery date, photos of how the scar has changed and a list of your medicines. The checklist in questions to ask before scar treatment will help you get clear answers in the room.