SUMMARYAlthough the scalp donor site has been considered to be advantageous for facial reconstructive surgery since it was first used in this manner by Crawford,18the deep scalp donor site has developed associated complications, including concrete scalp.13The incidence of this complication, combined with our concerns related to pain, anxiety, and subsequent risk of surgery with resulting alopecia, led us to investigate a new scalp donor site treatment, the Unna cap. Although both treatment groups yielded similar healing times (11 days), 2 of 3 patients treated with Xeroform gauze (Group 1) went on to develop a concrete scalp deformity requiring significant care and a longer hospital stay, whereas no patients in the Unna cap group (Group 2) developed such complications. In addition, patients in Group 2 reported less procedural pain with the Unna cap. The Unna cap showed a trend toward being more cost-effective because of a decrease in the nursing time required (fewer dressing changes). These findings are consistent with our earlier trial experience. For these reasons, the Unna cap has replaced medicated gauze as the standard treatment for scalp donor sites at our institution.We thank die nurses and therapists of the University of Washington Burn Center who supported this research, especially Margaret Sandvig, RN, BSN, former nurse manager of die acute care burn unit, without whom this study would not have been possible.