Any suggestions about how to avoid something like this or how to treat it??
here on the left coast we have poison oak.
first is a physical barrier - long pants, long sleeves, gloves.
second might be this product:
IvyX.
post exposure: what pete said above - you gotta get the oils off.
for me, i use benadryl creme ( comes in large tubes or in stick form for travel ) under a bandaid ( helps keep my fingers off the itch and also stops the spreading. )
the last little bit i had on the back of my left hand took two weeks to go away - but little to no itch.
maybe a mix of your favorite steroid cream with a bit of benadryl creme might work.