A keloid is a type of scar which is a reaction of the skin to injury or trauma and may arise spontaneously. Keloids are firm, rubbery lesions and may be reddish or dark in color. Keloids can be removed for cosmetic reasons. Unfortunately, the recurrence rate after removal can be as high as 50% and they can be very resistant to therapy. Treatments at Sand Lake Dermatology Center include surgical or laser excision, followed by injections of cortisone on a monthly basis. Topical therapies can be helpful to prevent recurrences, including imiquimod (Aldara).