When I think I've been anywhere near poison oak I always scrub down with
Tecnu when I get home. If you miss the opportunity to diminish the first exposure, my dermatologist recommends getting the shot or the pills if it is acute. And I have had some severe cases of poison oak! With Tecnu I've been able to limit any outbreaks to small areas, and therefore I've opted to forego taking
Prednisone with its nasty side effects.