With more than half of all adults allergic to poison ivy, oak and sumac, scientists are reporting an advance toward an inexpensive spray that could reveal the presence of the rash-causing toxic oil on the skin, clothing, garden tools, and even the family pet. Using the spray would enable people to wash off the oil, or avoid further contact, in time to sidestep days of misery.![](http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/udVQ0U-37fE)
URL: http://feeds.sciencedaily.com/~r/sciencedaily/plants_animals/dogs/~3/udVQ0U-37fE/120926123853.htm
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