You would think that apoison ivyrash would be as easy to treat as it is to recognize.

Unfortunately, it isn’t that easy.

That can allow anything but a minor case of poison ivy to flare back up.

Poison Ivy growing on the ground

Jennifer Yakey-Ault / Getty Images

J Clin Med Res.

(6):429-34.

Emerg Med Clin North Am; 25(2): 375-433