Hypertrophic scar; Keloid scar; Scar - hypertrophic
You can prevent discoloration from sun exposure by covering the forming keloid with a patch or Band-Aid, and by using sunblock when spending time in the sun. Continue these extra protection measures for at least 6 months after injury or surgery for an adult, or up to 18 months for a child.
Imiquimod cream has recently been used to prevent keloids from forming after surgery, or to prevent keloids from returning after surgery to remove them.