Acne - Acne Scars and Their
Treatment
The unsightly appearance of acne lesions or pimples
isn't the only potential problem with the disease, unfortunately. In
some cases, it's possible for acne to leave permanent scars.
Some conditions may appear to be scars that are not. Macules and other
bumps can occur even after acne is treated. Redness may persist for up
to a year. But these aren't true scars. They're not permanent.
True scars are a permanent change to skin tissue produced by the healing
process itself, chiefly creating fibrous tissue. As white blood cells
attack bacteria they can produce changes in underlying skin cells in the
surrounding area. This is one way scars become permanent.
They may also not be limited to areas under the surface.
So-called icepick scars are small pinholes that form in the surface of
the skin. They look as if the skin has been poked with an icepick, hence
the name. They're typically too deep to be treated with simple
dermabrasion or even laser resurfacing.
Boxcar scars are similar, except they tend to be flatter on the bottom,
rather than narrowing to a point like icepick scars. Since they're often
shallower they can sometimes be treated with resurfacing techniques.
Keloid scars are firm and grow beyond the site of the injury. They're
characterized by an excess production of collagen. They often result in
a shiny pink or red scar.
Prevention is the best option, of course. But when that's not possible,
there are a number of standard treatments.
Dermabrasion
Dermabrasion is used to treat a wide range of skin conditions, including
mild to moderate acne scarring. A local anesthetic is given and the
professional uses a high speed brush to remove layers of skin. The skin
then naturally regenerates, minus the scar in many cases. When it's not
entirely removed, it's often less obvious.
A variation on the technique is known as microdermabrasion. Instead of a
high speed brush, aluminum oxide crystals are moved rapidly through a
type of vacuum hose. They carry away skin cells on their way to being
collected. It's less invasive or traumatic to the skin, but the results
may, therefore, be less.
Lasers
Laser treatment can be effective for some patients. Used well, they can
change the contour and size of scars. CO2 lasers are often used to
remove some tissue. Sometimes a single treatment is enough, but redness
can persist for several weeks afterward. Lasers work in these types of
treatment, essentially, by burning.
Surgery
A technique called 'punching' can be used to remove some icepick scars.
The scar is excised down to subcutaneous fat and the resulting hole
repaired. The repair may be done with sutures or a small skin graft.
Subcisions may be performed. These involve actually lifting the scar
tissue away from unscarred skin. Results are mixed, but the technique
can be effective.
Drugs
Keloids don't respond well to these mechanical techniques, since
altering the skin often just provokes the formation of more keloids.
Sometimes a topical retinoid is applied. In other cases steroid-type
drugs are injected directly into the skin around the scar. They're
difficult to treat by any means and results vary widely from person to
person.
Whatever treatment method you seek, it's important to consult a
professional for proper diagnosis. That's the best way to find out about
all the available alternatives, and their potential risks and benefits.
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