Wednesday, June 23, 2010
Black Spot Poison Ivy
Black spot poison ivy is the same urushiol but in humid, warm conditions it is oxidized by lactase from the skin and turns into a dark black lacquer color. It is an uncommon presentation because usually the sap is diluted by perspiration and never turns black.
(Image from Consultantlive)
Posted by Toni Brayer, MD at 10:27 PM