If you notice lentigo or melasma getting darker in the mirror, you might consider laser treatment. Lentigo (melasma) is a benign pigmentary lesion caused by accumulated UV exposure and aging, where melanin pigment clumps in the epidermis. While painless, once established, it's difficult to lighten with cosmetics alone. The first question that often comes to mind is usually one: "Will one or two laser sessions really remove it cleanly?" To answer directly, post-treatment care is as crucial as the procedure itself in determining the final outcome.
RePott Laser is gaining interest as a device that can address pigment issues in relatively fewer sessions. In this article, we've compiled frequently asked questions from the clinic, from the treatment principle to recovery care methods.
Why don't melasma and lentigo fade well with cosmetics?
Melasma and lentigo are pigmentary lesions where melanin is deeply embedded in the epidermis. Whitening cosmetics, which only exfoliate the surface, struggle to reach the root of the pigment. Therefore, for lesions that have darkened beyond a certain level, methods that directly target the pigment, like lasers, are considered.
Even if they look similar, pigmentary lesions vary in type. For superficial pigment such as blemishes, lentigo, and freckles, an approach targeting epidermal pigment, like Epidermal Pigment Removal, may also be considered. Since the treatment direction changes depending on the depth and pattern of the pigment, even for the same type, diagnosis by a dermatologist takes precedence over self-assessment.
How does RePott Laser treat pigment?
RePott Laser is a device that precisely targets and irradiates the problematic area with 532nm wavelength energy. It is designed to deliver concentrated energy to the pigmented area while continuously maintaining a cooling temperature during the procedure.
Maintaining cooling simultaneously is considered an advantage, as it can reduce burdens such as pain or vascular damage while treating the pigmented area. However, the degree of response and recovery patterns may vary individually.
As a device that delivers strong energy, the final result can vary depending on how the skin regeneration process is managed.
RePott Laser is a device that delivers strong energy. Therefore, how you manage the recovery period, when the skin regenerates, determines the final completeness more than the procedure itself. If you are considering the procedure, checking the information below beforehand may be helpful.
Do I really need to apply a hydrocolloid dressing immediately after the procedure?
The RePott Laser procedure itself is relatively simple and quick. After the procedure, a hydrocolloid dressing is applied for quick recovery and lesion protection, and many people wonder if this process is essential.
The key is the process of new skin growing. In a way, this is the most important period in melasma removal care. If the scab falls off before the skin has recovered, it can negatively affect the overall outcome, such as post-inflammatory hyperpigmentation or exposure of the wound area.
If the hydrocolloid dressing applied by the clinic starts to peel off, do not intentionally remove it; simply apply a new one that covers a wider area than the original. In the examination room, we see that this small difference plays a surprisingly large role in protecting the skin during recovery.
How long should I keep the hydrocolloid dressing on?
So, how long should you keep the hydrocolloid dressing on? Generally, it is recommended to maintain it for about two to three weeks. However, the duration may vary depending on the skin condition of the person who received the treatment; if the skin is very thin, it may need to be maintained for more than three weeks.
Here are some key points to remember for hydrocolloid dressing care during recovery:
- If the dressing lifts or starts to peel, do not remove it; apply a new one that covers a wider area.
- The recommended maintenance period is usually two to three weeks, but it may be longer if the skin is thin.
- The duration may vary depending on the degree of recovery, so prioritize checking the progress over arbitrary discontinuation.
- Do not pick or scratch scabs with your hands.
If you have any questions, you can easily check them by using Chat to ask about RePott Laser treatment and recovery care.
If the treated area is itchy or red
If you notice changes such as itching or redness in the treated area during the maintenance period, it is necessary to carefully examine whether it is a skin allergic reaction or a temporary phenomenon and take appropriate measures.
If the discomfort is unbearable, it is safer to have your condition checked at the clinic without delay. Rather than self-diagnosing and changing ointments or arbitrarily removing dressings, having your progress checked together is the way to maintain the recovery process.
It's not over just because the pigment has fallen off
Even if the bothersome pigment has fallen off after removing the hydrocolloid dressing, melasma removal care is not completely finished.
The regenerating skin is vulnerable to external stimuli and still has redness, so extra attention must be paid to post-inflammatory hyperpigmentation management. Since the stratum corneum is thinned, efforts to minimize skin irritation as much as possible are necessary. Avoid scrubs when washing your face, and be careful not to stay in water for long periods, such as in saunas, jjimjilbangs, full baths, or swimming.
Daily care tips for a clean finish
Here's a table summarizing important recovery care points to remember in daily life:
| Management Item | Recommended Approach |
|---|---|
| Regenerative ointment and cream | Apply frequently to aid skin regeneration |
| UV protection | Sunscreen is essential when going out |
| Physical irritation | Avoid scrubs and prolonged water exposure |
| Scab management | Wait for it to fall off naturally |
Above all, be sure to apply sunscreen when going out for UV protection. Pigmentary lesions are easily irritated by UV rays again, so UV management during the regeneration period is a major variable in the final stage.
Interest in RePott, known as the melasma laser, remains strong. As it has the advantage of quickly treating pigment, addressing pigment issues can be further achieved when combined with post-treatment melasma removal care. By paying a little more attention to easily maintainable care points in daily life, you can achieve clean skin. If you are curious about Customized Whitening Solution that broadly addresses pigment caused by UV accumulation, checking the right approach for your skin through a consultation is also an option.
If you have questions about eligibility or recovery care, you can easily ask via Chat to inquire about melasma/lentigo pigment treatment.
Sang-Joo Lee, Chief Director · Dermatologist Chief Director of Yonsei Star Dermatology Sinchon, President of the Korean Dermatological Association in 2026, and Adjunct Professor at Yonsei University College of Medicine, Department of Dermatology, with extensive experience in pigment and scar treatment. Director Profile First published 2025-04-21 · Last reviewed 2026-07-23
This content provides general medical information. Treatment response and recovery period may vary individually, and accurate diagnosis and treatment direction should be determined through consultation with a dermatologist.