Yes/no/basics: The rash of poison oak is due to an oily chemical from the surface of the plant.Once it is there,it remains until washed off.People usually begin to itch at the site 6-8 hrs later wherein they spread the chemical from their fingers/nails.The rash appears 12-24 hrs after contact. It will not spread to any area the chemical has not touched. Weeping from blisters does not spread it. Sweat does not.
Answered 7/1/2020
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Urushiol: Agree with Dr. Ferguson. Exercise/ sweat doesn't spread the urushiol oils from the poison oak. You can use scrubs (within 8 hours of exposure) with micro-fine scrubbing beads to get rid of urushiol that is embeded in skin.
Answered 7/1/2020
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