Poison Ivy, Oak, and Sumac Information Center

Q&A Board

PI, PO, PS... same rash?

Subject: PI, PO, PS... same rash?
Author: Frank
Date: 5/6/2010 7:35 am
Views: 2862
Status: Approved
« Previous Thread
Next Thread »
Back To Message List
Something I've always wondered... I've had a number of people swear they're "immune" to PI but not to PO or PS. Putting aside for the moment that it's not really immunity but a matter of how susceptible you are to it currently...

Since it's all from the same urushiol oil, doesn't that mean if you're prone to one you're equally prone to the others?

Isn't the rash/reaction from each virtually identical with distribution primarily based on how you contacted it (little bits, long swathes, etc)? I could see how the oil is distributed across the different plants may differ slightly but the effects would be the same I would think meaning thered be no way to identify "which" plant affected you based on looking only at the results after the fact.

Or am I off base here?

PI, PO, PS... same rash? (Approved)Frank5/6/2010 7:35 am
  Re: PI, PO, PS... same rash? (Approved)Visitor5/6/2010 12:29 pm
  Re: PI, PO, PS... same rash? (Approved)Brian5/6/2010 3:13 pm