Low-level X-ray radiation alone or after surgical removal of a keloid can help shrink or minimize the scar tissue. Possible side effects, which are more common in people with darker skin, include hypopigmentation or hyperpigmentation, blistering and crusting. Your doctor might recommend combining laser therapy with cortisone injections. Pulsed-dye laser therapy is delivered over several sessions with 4 to 8 weeks between sessions. This method has also been useful in easing itchiness and causing keloids to fade. Larger keloids can be flattened by pulsed-dye laser sessions. Possible side effects of cryotherapy are blistering, pain and loss of skin color (hypopigmentation). Small keloids might be reduced or removed by freezing them with liquid nitrogen (cryotherapy). Possible side effects of corticosteroid injections are skin thinning, spider veins and a permanent change in skin color (hypopigmentation or hyperpigmentation). You'll likely need monthly injections for up to six months before seeing the scar flatten. If you have a smaller keloid, your doctor might try reducing its thickness by injecting it with cortisone or other steroids. Applying a prescription strength corticosteroid cream can help ease itchiness. Such dressings need to be worn for 12 to 24 hours a day for 4 to 6 months to be effective. The goal is to reduce or prevent a scar by putting pressure on the wound as it heals. This method is also used after surgery to remove keloids. For newer keloids, the first treatment option might be compression dressings made from stretchy fabric or other materials.
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