HOUSTON -- (August 3, 2007) -- Adding a slice of lime to a favorite summer drink is nice to cool off with, but it could leave your skin burning, say dermatologists at Baylor College of Medicine in Houston.The condition, called phytophotodermatitis, happens when a certain plant compound comes in contact with the skin, making that one area light sensitive. During the summer, lime juice is the common cause for this condition, which is why some doctors call it ‘margarita dermatitis.’