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Post-inflammatory hyperpigmentation (PIH) are dark marks that appear on your skin after acne or skin trauma. These spots are caused by left over inflammation, which leads to extra pigment in the skin. PIH is more common in people with darker skin tones and can take a long time to fade, sometimes lasting for years if untreated. While the spots aren't permanent, Dermatologists often combine treatments, such as topical creams alongside laser therapy, to achieve the best results. Regular follow-ups ensure safe and effective progress.

The Science Behind It

Post-inflammatory hyperpigmentation (PIH) occurs when skin inflammation, such as from acne, triggers an overproduction of melanin, the pigment responsible for skin colour. This results in dark spots or patches that can range from brown to gray, depending on skin type and the depth of pigmentation. Inflammation activates pigment-producing melanocytes, depositing excess melanin in the epidermis (surface layer) or dermis (deeper layer). UV exposure can worsen PIH by stimulating further melanin production. While PIH often fades over time, laser therapy can help accelerate the process and restore an even skin tone.

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What are the best lasers for this condtion

Nd:YAG Laser

(Available on Excel V and Excel V Plus)

Best for

Mild cases or isolated vessels.

How It Works

The long-pulse Nd:YAG laser emits energy at a wavelength absorbed by haemoglobin in blood vessels. This heat causes the targeted vessels to collapse, effectively treating both surface red veins and deeper blue veins.

Results

Treated vessels may disappear immediately or gradually fade over several weeks.

Combined Vascular Laser and BBL Approach

(Candela VBeam Perfecta, Excel V, Excel V Plus, Sciton BBL)

Best for

More severe cases or large areas of visible facial veins and redness, particularly in rosacea.

How It Works

This approach layers multiple vascular-targeting technologies in one session, including:

  • Nd:YAG Laser: For deeper blue or purple visible blood vessels.
  • Vascular-Tailored Settings of Broad-Based Light (BBL): For diffuse redness and widespread visible capillaries.
  • Pulse Dye Laser: (Candela VBeam Perfecta, Excel V Plus) For bright pink surface vessels and fine skin flushing.

Results

Effectively reduces visible veins, diffuse redness, and facial flushing commonly seen in rosacea.

Rejuran (Polynucleotides)

(Candela VBeam Perfecta, Excel V, Excel V Plus, Sciton BBL)

Best for

Stimulating collagen and vascular remodelling to reduce persistent skin redness.

How It Works

Often recommended in combination with vascular laser or BBL treatments to enhance skin healing, texture, and redness reduction.

While each treatment offers its own benefits, the most effective plan depends on your skin type and specific concerns. A consultation with our dermatology team at Scars & Lasers ensures a tailored approach that considers your overall skin health, treatment goals, and any potential risks.

Potential Treatment Protocols

Treatment Type
Number of Sessions
Procedure Time
Recovery
3-6 sessions
10 - 20 Minutes
2 - 5 Days
2-5 Sessions
10-30 Minutes
3 - 5 Days
3 Sessions - every 3-4 weeks, for 3 months
30 Minutes
Slight redness and swelling for 48 hours
2 - 4 Sessions
40 Minutes
3 - 5 Days
FAQ

Frequently Asked Questions

What are picosecond lasers, and how does it work for treating PIH?

The picosecond lasers use ultra-short pulses of energy to target and break down excess pigment in the skin. It stimulates the body’s natural healing process, clearing dark spots caused by post-inflammatory hyperpigmentation without damaging the surrounding skin. it is highly effective for treating PIH. It improves skin tone and texture with minimal risk of side effects, even on darker skin tones.

How many sessions will I need to treat PIH with PicoWay?

Most patients require 3–5 sessions spaced 2–4 weeks apart. However, the number of treatments depends on the severity of the pigmentation and your skin's response to the laser.

What is the recovery time after a PicoWay laser treatment?

There is minimal to no downtime with PicoWay laser treatments. You may experience mild redness or swelling immediately after the session, but this typically resolves within a day or two.