Not exact matches
For decades, researchers have suspected that when the immune system molecule CD1a comes in contact
with the plants» oily resin, called
urushiol, it triggers inflammation.
And if you suspect an object has
urushiol oil on it, clean it
with rubbing alcohol or soapy water.
Evidence that you've tangled
with poison ivy can take hours or days to appear, depending on how sensitive you are and how much
urushiol oil came into contact
with your skin.
About 15 % of people are immune to
urushiol oil and wouldn't know if they had a close encounter
with a poison ivy plant.
A poison ivy rash is caused by
urushiol oil from a poison ivy plant coming into contact
with skin.
If you're going outdoors and think you might come into contact
with poison ivy, use an over-the-counter barrier cream as a buffer between
urushiol oil and your skin.
If
urushiol oil from a plant does gets on your skin, it could spread to other parts of your body if you touch the oil
with your fingers then touch another part of your body.
Dogs can respond
with a similar rash as humans, but thick hair often protects the skin from exposure, even in
urushiol sensitive dogs.