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.
Juckett G, Hartman-Adams H. Management of keloids and hypertrophic scars. Am Fam Physician. 2009;80(3):253-260
Habif TP. Benign skin tumors. In: Habif TP, ed. Clinical Dermatology. 5th ed. St. Louis, Mo: Mosby Elsevier; 2009:chap 20.