Turns out, they can be pretty random.
, and prolonged inflammation at the injury site, could contribute to the formation of keloids. But we’re still far off from really understanding exactly why and how they’re produced.
The good news is that keloids aren’t necessarily something you need to be worried about. “They’re not an infection, they’re not contagious, and they’re not related to cleanliness,” Dr. Preissig says. “They just occur randomly.” Although keloids aren’t harmful, sometimes they do come with some pain or itching.
At first you might be tempted to try over-the-counter options including topical silicone sheets and gels. These usually need to be applied at least once a day and used continuously for months to see any results,. These are also most effective when scars are new, and your dermatologist may advise you use this along with another treatment, such as a pressure dressing that reduces blood flow to the area to stop a keloid from forming.
If your keloid is particularly thick or large, steroid injections alone may not be enough, Dr. Preissig says. In that case, your dermatologist may recommend using injections of 5-fluorouracil, a chemotherapy medicine as well as some types of skin cancer. “Keloids aren’t cancer, but this type of injection has been very effective,” Dr. Preissig says. It can be used on its own or alongside steroid treatments.
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