Keloid cysts around piercings are caused by a build-up of scar tissue. These are often itchy as they grow and can be a nuisance, but are not dangerous, according to MedlinePlus, a website operated by the U.S. National Library of Medicine. Proper precautions when getting pierced can help the piercing heal properly and prevent keloids. When keloids do occur they are easily treated or removed by a doctor, though there is no guarantee they won't grow back. If you already have a keloid your chance of developing more is greater than if you don't have one, so avoid further piercings if you notice a keloid.
Ensure hygiene and proper practices are in places when getting your ears pierced or gauging existent piercings. Never have your ears pierced with a gun, as this causes additional trauma to the piercing site. Go to professional piercers who use needles, and when gauging, go through the process slowly so that the wound does not break open.
Decide upon your tolerance of the keloid versus your desire to keep the piercing. If you do not have health insurance, visiting a doctor may not be an option, so removing the piercing and allowing the site to fully heal may be the only alternative. This will be a long healing process, but depending on the size of the keloid, it can be a relief.
Visit a doctor to discuss removal or treatment. Sometimes keloids can be treated like warts and be frozen off, but some more extreme cases may require surgery or laser removal, which can be invasive and costly. Be sure the doctor also performs a biopsy to check for possible tumours.