On Sat, 12 Jan 2013 15:55:17 -0800, Bob F wrote:

For the abrasive, maybe toothpaste will work as it has sand in it.

Or, add a little lava hand soap?

I was thinking about ajax - but that seems too abrasive.
Pumice would obviously work.
As would the polyethylene granules.

An abrasive is important because we're assuming the urushiol
sap has been on the skin for a day or two, so we need to
get deep down to the Langerhans's dendritic cell layer
where the now-activated quinone is bound to the receptor.

We then need to pull that quinone OFF the receptor, and
replace it with the glycol ether, along with blocking
all the other receptors with glycol ether.

Then we need to wash it all away, so that it doesn't infect
further.