Scars on any part of the body can affect appearance, but facial scars significantly impact one's looks. So how can we remove these scars that greatly diminish beauty? Surgical methods can eliminate them. Below are reviews of the pros and cons of five major scar removal procedures. Let's explore them together.
Laser Therapy
Principle: By altering the laser's focusing characteristics, the laser beam is transformed into a spot. Using a pattern generator, this spot is scanned across the target area in a specific pattern. The intense heat generated by the laser spot instantly removes the targeted tissue within the scanned area.
Disadvantages: Only effective for raised skin; cannot fill in depressed areas. Improper laser use may cause new scars or uneven pigmentation.
Collagen Injection
Principle: Highly purified bovine collagen mixed with anesthetic is injected into the dermis layer, where the body gradually dissolves the collagen.
Drawbacks: High risk of allergic reactions; mandatory allergy testing is required before the procedure.
Fat Injection Method
Principle: Fat is surgically harvested from another body area, purified, and injected into the scar to promote fat growth.
Disadvantages: Current fat graft survival rates are low, requiring multiple sessions.
Chemical Peeling
Principle: Chemical agents like carbolic acid, trichloroacetic acid, or alpha-hydroxy acids are applied to the scar surface to remove the top layer of skin cells. After the scarred skin peels off, fresh, new skin emerges.
Disadvantages: May alter skin pigmentation; generally unsuitable for most Asian skin types.
Dermabrasion
Principle: A cooling agent numbs the skin, followed by abrasion with a rotating instrument to smooth and level the skin surface.
Disadvantages: Prone to bleeding and pain; may cause skin roughness; increased tanning risk after sun exposure.
Note: Scars can only be improved, not completely removed.