Scars are formed when damage to the skin in deep enough so that the skin cannot repair itself back to its orderly original structure. The body then lays down more fibrous and elastic tissue to form scars.
Scars are pinker when fresh but gradually turns lighter in colour with time. Scars that shrink and are depressed are called Atrophic. Occasionally scars become enlarged , protrudes and may even itch or become sensitive. These are either hypertrophic scars or keloids.
It is not known why keloids form in some people even after apparently minor injuries.
KELOID SCAR
Pimple or Acne scars forms when the skin is damaged by infected cystic acne. These scars be pitted like ice pick marks, atrophic when white and depressed or hypertrophic when bumpy and reddish.
ICE PICK ACNE SCARS
ATROPHIC ACNE SCARS
Recent acne scars can get dark, especially in darker skin types, a process due to post inflammatory hyperpigmentation. (PIH).
ACNE SCARS WITH PIH
TREATMENT MODALITIES
KELOIDS
Topical and intralesional potent steroid injection.
Silicone patches or gel
Pulse Dye Lasers
Excision surgery- may result in recurrence.
ACNE SCARS
Microdermabrasion (Othena Peel)
Fractional Laser Resurfacing ( Collagen Thermoscan)
Subscision needling
Micro dermal roller therapy.
Fillers to fill up large defects.
ACNE SCARS WITH PIH
PIH is best treated with a pigment laser. (MEDLITE C6)
Topical lightening agents. (eg LUMIXYL)
Vit C Iontophoresis ( HI VITALION )