Did I get melasma after laser treatment for acne scars? Is this true or just a coincidence?
We have to acknowledge first that... "Yes, they are related." Although the goal of laser treatment for acne scars is to break down scar tissue to stimulate collagen production, a major factor that leads to subsequent melasma is... "Thermal energy" Yes
Lasers used for treating acne scars (such as high-energy Pico lasers) deliver heat relatively deep into the skin. If the patient's skin is... I have dark skin tones. หรือ It already has light-sensitive pigments. Excessive heat stimulates melanocytes (pigment-producing cells) to work abnormally hard, resulting in dark spots known as hyperpigmentation. PIH (Post-Inflammatory Hyperpigmentation) Or, if the patient already has a pre-existing condition, this heat may dissipate it. "alarm" It can make the blemishes more visible.
Why does heat "awaken" ceiling panels?
To help patients visualize this clearly, let me compare our skin to... "Alarm system" Yes
- When the skin is exposed to high heat from a laser, the skin understands that... I am being assaulted.
- The alarm system (pigment cells) was therefore quickly put into production. "The protective shield" (which is the black pigment) It comes out to cover the skin in order to reduce damage.
- The result is: Acne scars might become shallower, but we often get dark spots or freckles as a bonus.
Self-care to prevent "scarring disappears but melasma appears."
The most important thing is... Post-Laser Care Yes, during the first 1-2 weeks, your skin will be most delicate and sensitive to light. If the patient does not apply the required amount of sunscreen (2 fingertip lengths) or is exposed to strong sunlight immediately. UV rays can further inflame already damaged skin, making it much easier to develop melasma.
Therefore, before laser treatment, doctors usually examine the skin carefully. If the patient has thin skin or is prone to melasma, the doctor will recommend a type of laser. Picosecond Laser This involves releasing energy very quickly and in a short period of time, preventing heat buildup, or adjusting the energy settings to avoid this side effect.

The most suitable treatment for melasma for Thai and Asian skin is a gradual approach.
pie title (Treatment Hierarchy)
"1. การป้องกัน & ทายา (Foundation) : กันแดด, ยาทากลุ่ม Whitening" : 40
"2. ทรีตเมนต์ & ผลักวิตามิน (Mild) : การทำทรีตเมนต์ลดเม็ดสี" : 20
"3. เมโสรักษาฝ้า (Moderate) : ฉีดตัวยาลงในชั้นผิวโดยตรง" : 15
"4. เลเซอร์ (Intensive) : Picosecond / Q-Switched (ต้องระวังความร้อน)" : 15
"5. ยากิน (Systemic) : ควบคุมโดยแพทย์เฉพาะทาง" : 10
Thai skin shouldn't be treated impulsively. Starting with gentle treatments and gradually progressing to more intensive ones will help maintain the strength of the skin barrier and lead to more long-lasting results.
- Basic level (40%): It's the most important thing, which is... Sun protection Applying cream to treat melasma. Doctor-approved: For Thai skin, if basic preventative measures are poor, even the most intense laser treatment won't cure it.
- Low level (20%): Vitamin infusion treatments or gentle peels help to gently exfoliate the outermost layer of pigmented skin.
- Moderate level (15%): Meso-melasma This method involves using a needle to deliver medication that reduces melanin production directly into the skin layers. This technique significantly reduces the risk of side effects from heat (compared to laser treatments).
- Intensity level (15%): Using lasers For example, the picosecond laser is highly effective, but it must be performed by a highly skilled physician to adjust the energy levels so that it doesn't get too hot and cause the melasma to darken.
- Enhancement level (10%): Taking medication to treat melasma. (Such as Tranexamic acid) is used when other treatments have not been effective and requires close medical supervision to monitor for side effects related to blood clotting.

