Keloid Laser: Does It Really Work? What You Must Know Before Treatment

Keloid laser treatment is a treatment aimed at reducing redness, itching, and pain, lowering thickness, and suppressing recurrence in protruding keloid scars. However, there is just one thing to keep in mind. It is realistically difficult to completely get rid of keloids with a single laser alone. Laser therapy only yields meaningful results when combined with supportive therapies such as drug injections, compression, and silicone management.

And another thing. The goal of keloid treatment is closer to "management" rather than "complete removal." It means calming the red, hard, and itchy symptoms and holding them back from getting any bigger. This may sound a bit disappointing, but accepting this premise and starting is the first step that determines treatment satisfaction.

🔬 What exactly is a keloid?

A keloid is an abnormal fibroproliferative scar that grows beyond the boundaries of the original wound into the surrounding skin. The key cause is the excessive production of collagen during the body's healing process, and as this overproduction of collagen continues without stopping, the tissue swells up like a lump.

Something that is frequently confused here is a hypertrophic scar. While both are similar in that the scar rises, there is a decisive difference. A hypertrophic scar does not go beyond the original wound range and may naturally subside over time. On the other hand, keloids spread beyond the boundaries of the wound and rarely disappear on their own.

What is interesting is the site of occurrence. Keloids commonly occur on the ears, chest (sternum), shoulders, upper arms, and jawline, but almost never occur on the eyelids, palms, or soles of the feet. Skin type also plays a role. Keloids are 5 to 15 times more prevalent in Black and Asian populations than in Caucasians, and the reported prevalence varies widely from 0.09 to 16% depending on the group. It is mainly common in those aged 10 to 30.

📌 Key Summary: Keloids are distinguished from hypertrophic scars in that they grow beyond the boundaries of the wound and do not disappear on their own.

💡 What role does the laser used for keloids play?

Not all lasers are the same. In keloid treatment, lasers play two main roles.

First is reducing redness and itching. There are many microscopic blood vessels inside the keloid, and lasers with a wavelength targeting hemoglobin in these blood vessels selectively reduce the blood vessels. This noticeably relieves the redness, itching, and tingling of the scar. This is particularly useful in highly active, early-stage keloids.

Second is refining surface texture and thickness. This method induces collagen rearrangement by creating microscopic thermal channels. Another reason this process is important is because it aids in drug delivery. When very small channels are made in the skin with a laser and then the drug is infiltrated along those paths, the drug penetrates deep into the scar tissue. This is called the concept of "laser-assisted drug delivery," and it is used to boost drug efficacy to areas that are difficult to reach with injections alone.

In addition, depending on the condition of the lesion, options are divided into long-wavelength lasers that work relatively safely on deep and thick lesions or dark skin, and ablative lasers that lightly refine the surface. The important thing is not the type of laser, but designing a combination that matches the activity, thickness, and color of your scar.

📌 Key Summary: Lasers are used for two split roles: target redness, and refine texture/thickness while helping drug penetration.

🤝 Why combined treatment instead of laser alone?

The main principle of keloid treatment is 'it cannot be done alone'. This is because it is difficult to sufficiently reduce the volume of hyperplastic tissue with laser therapy alone. That is why several methods are layered according to the purpose.

The most widely used is intralesional steroid injection. Because it is effective in reducing scar volume, it is considered the primary standard treatment, and it is usually repeated at regular intervals of 4 to 6 weeks. When the response to steroids is weak or combination is needed, other drugs that suppress collagen overproduction are also used together.

On top of this, silicone sheets and compression therapy play a solid supporting role in preventing recurrence.

• Silicone sheet: Maintains moisture in the scar and suppresses its growth. It is meaningful only when used consistently for more than 12 hours a day, for at least 2 to 3 months.

• Compression therapy: A method of maintaining pressure of about 20 to 30 mmHg for 12 to 24 hours a day, for several months or more. Ear keloids in particular are often managed in the form of pressure earrings.

• Cryotherapy: It is also used to treat small lesions or to reduce pain before injection.

Let's point out one figure. Simply cutting out a scar results in a keloid recurrence rate of 45 to 100%. In keloid-prone individuals, the incision itself becomes another stimulus. Therefore, surgery is an area to be carefully considered, and even if it is absolutely necessary, it is common sense to plan supportive treatments together. The direction preferred by Onlif is also a non-surgical approach to manage scars through laser and intralesional care based on an activity diagnosis before applying a knife.

📌 Key Summary: Combination therapy, which overlays lasers, injections, compression, and silicone according to the purpose, is the basic formula for keloid management.

⚠️ Precautions you must know if you have dark skin

This is a story that is particularly important for Asians. The darker the skin type, the higher the risk of hyperpigmentation after laser treatment. As the thermal stimulus of the laser activates melanin, post-inflammatory hyperpigmentation, where the treated area remains dark, can occur.

Therefore, for dark skin, conservative energy settings and preliminary test exposures are recommended. Instead of going strong all at once, it is safer to adjust while observing the reaction little by little. UV protection after treatment is also key to pigment management.

Another thing, high-energy lasers are a double-edged sword. If you raise the energy excessively in search of effectiveness, that thermal damage itself can become a new wound stimulus and worsen the keloid. In keloid-prone individuals, 'strongly' does not always lead to 'well'.

The same goes for steroid injections. If excessive, side effects such as depression of the skin, atrophy, capillary expansion, and pigment changes may occur, so dose control is important. In the end, keloid treatment is an approach that must be done 'accurately and carefully', not 'a lot and strongly'.

📌 Key Summary: In dark skin, conservative settings are essential due to the risk of hyperpigmentation, and excessive energy or excessive injections will have the opposite effect.

📅 How many times and how long should I receive treatment?

To be honest, keloid treatment does not end quickly. It is usually repeated at intervals of 4 to 8 weeks, and at least 3 to 6 sessions are required. If the lesion is large and highly active, it may need to be continued long-term for over a year.

Why does it take so long? This is because keloids have a strong tendency to rear their heads again even after being suppressed once. Therefore, treatment is closer to the 'beginning of management' rather than the 'end'. It is important to monitor the progress and check for recurrence signals even after it has visibly subsided.

Another thing to remember. Early intervention is advantageous. The smaller and earlier the lesion, the better the treatment response, and the larger and older it gets, the more work it takes. If the scar keeps growing or starts to itch and hurt, it is better not to delay.

• Those whose scars grow or become elevated over time

• Those whose scarred areas are itchy, red, or painful

• Those with a past history of keloid constitution or family history

• Those whose scars protruded after surgery, piercing, or inflammation

📌 Key Summary: Keloid treatment is a long-term battle repeated several times at 4 to 8-week intervals, and starting when it is small is more advantageous.

🎯 How does the approach differ by region?

Keloids behave differently depending on where they occur, so the treatment design also varies slightly.

• Ear Keloids (After Piercing): It is common to see them hanging hard like beads on the earlobe or auricle. Since it is an area where compression management is easy to parallel, a combination of adding compression therapy to lasers and injections is frequently used.

• Surgery/C-Section Scar Keloids: It swells red and long along the incision line. As the scope is wide, combination design is important.

• Chest/Back Keloids: Often start from acne or inflammatory wounds. In this case, soothing the inflammatory trouble must come first. It is like pouring water into a bottomless vessel to only touch the scar while the fire continues to burn.

• Trauma/Burn Keloids: Since they are irregular shapes that spread widely, activity diagnosis is particularly important.

For your information, for old, brownish keloids, the effect of vascular-targeting lasers may be relatively limited. Rather than the time of occurrence, 'activity'—whether it is currently growing or in a stable state—is a more important criterion for judgment. It is not that you cannot touch it because it is old, but rather, you set the direction by looking at the current state.

📌 Key Summary: The aspect is different for each region, inflammation control comes first for the chest and back, and the treatment direction is determined by 'activity' rather than the time of occurrence.

🙋 Frequently Asked Questions (FAQ)

How do you distinguish between keloids and hypertrophic scars?

Hypertrophic scars do not exceed the original wound range and may subside over time. On the other hand, keloids spread to the surroundings beyond the boundaries of the wound and rarely disappear on their own. Accurate differentiation requires a diagnosis that looks at tissue status and activity.

Can lasers alone completely eliminate keloids?

It is difficult to completely remove them with a laser alone. While lasers are effective in reducing redness/itching and refining texture, combination management such as drug injections, compression, and silicone is needed together to reduce volume and prevent recurrence.

Can it recur after treatment? What is the recurrence rate?

Keloids are scars that have a possibility of recurrence due to constitutional factors. In particular, when simple excision is performed, the recurrence rate is reported to be very high, at 45 to 100%. Therefore, it is important to consistently check and manage the progress even after treatment.

Do Asians develop hyperpigmentation after laser treatment?

The darker the skin type, the higher the risk of post-inflammatory hyperpigmentation after laser treatment. Therefore, conservative energy settings, preliminary tests, and thorough UV protection after treatment are recommended.

Can a laser actually make a keloid grow larger?

It is possible. If the energy is excessive, that thermal damage itself can become a new stimulus and worsen the lesion. In keloid-prone individuals, an approach that carefully adjusts according to the condition is safer than doing it strongly.

Do I have to use a silicone sheet after laser treatment?

It is not mandatory, but it helps prevent recurrence. To see results, it is recommended to use it consistently for more than 12 hours a day, for at least 2 to 3 months.

Can old keloids be treated too?

Yes, they can. Rather than the time of occurrence, 'activity'—whether it is currently growing or in a stable state—is a more important criterion. Old keloids can also be guided into treatment directions after diagnosis.

Keloid Laser Treatment, Things to Check Before Choosing a Hospital

Even for the same procedure, the results and recovery process vary depending on where, by whom, and how it is performed. Asking these questions directly during your consultation will help you make a decision.

• Is it a place that performs that procedure frequently? — The main procedures handled by each hospital vary. Check if it is a place that regularly performs keloid laser treatments.

• Can I check the products and equipment used? — Ask during the consultation if you can verify the product name and authenticity (whether it is an imported approved product, and if there is an unboxing verification process).

• Do they explain the composition of the cost? — Rather than just listening to the total amount, you need to hear an explanation of what product is used, how much, and to what extent to make a judgment.

• Do they design by looking at the entire face? — Even for the same procedure, the location and amount to be injected vary depending on the face shape, skin condition, and left-right asymmetry.

• Do they explain the adverse reactions and recovery process first? — It is easier to make a judgment in a place that informs you of possible adverse reactions and coping methods together, rather than a consultation that only talks about expected changes.

• Is there a way to follow up after the procedure? — Check if the time to check progress, the method of contact when there is an anomaly, and the criteria for re-visiting are established.

Onlif Clinic does keloid laser treatment like this

• We divide responsibilities — With the thought that one doctor cannot handle all procedures, Onlif divides medical treatment among doctors responsible for each field.

• We verify products and equipment together during consultations — We guide you through the products used and the unboxing verification process during the consultation.

• Costs are guided along with the composition after diagnosis — Since the site, volume, and scope differ for each person, we explain together what costs how much.

• We design by looking at the overall facial balance — We look at the face through three axes: texture, balance, and signals of youth, and make plans in a direction that cleans up the parts obscuring the natural impression rather than changing the shape.

• We tell you about adverse reactions and recovery processes first — Along with expected changes, we guide individual differences, possible adverse reactions, and coping mechanisms before the procedure.

• We look at the progress after the procedure together — If verification is needed during the recovery period, we will guide you through the return visit and contact path.

If you are considering keloid laser treatment, it is best to first check what is possible and what is difficult in your current state. Accurate diagnosis and treatment plans can only be determined through in-person medical treatment. Check out by consulting at Gangnam Onlif Clinic.