bhart90 said:
I bet it's on my car seat
Whatever you do, don't wear shorts in that car!!
But seriously, have you cleaned all the surfaces from the eventful day? The stuff can remain active for
years.
The lye soap works good, also Fels-Naptha bar soap but there are products designed to remove the Urushiol oil from surfaces like the door handle on the car, the car seat, steering wheel, emergency brake handle, the clothes you were wearing on that day, your shoes, etc.