Guidelines that are no longer current are archived as a HISTORICAL RESOURCE ONLY. Archived Guidelines may not be considered as guidance for current medical practice or considered the current American Academy of Dermatology (AAD) position on the appropriate care and treatment for the listed clinical topics. AAD evidence-based guidelines are sunset five years from the date of publication unless superseded by an update, which is consistent with national standards. Some clinical recommendations and conclusions in this version may be outdated due to technological or clinical advances. visited on 4/8/2015