YSK If exposed to radiation in a nuclear blast and you get access to a shower, you should 1. Remove clothing and seal in plastic bag 2. Wash yourself (do not scrub) with soap and water 3. Wash hair with shampoo, but DON'T USE CONDITIONER as it binds radioactive material to your hair.

Sharing this given the heightened threat of a nuclear crisis.

The Ready.gov page warns in a Nuclear Blast it is important to take shelter immediately, remove all clothing exposed to radiation, and seal it in a plastic bag to be thrown away as far from humans as possible. If you can take a shower, wash body with soap and rinse off, but DO NOT SCRUB OR SCRATCH your skin. Wash your hair gently with shampoo, but do not use conditioner after because "it will bind radioactive material to your hair, keeping it from rinsing out easily." After showering, you should "gently blow your nose and wipe your eyelids and eyelashes with a clean wet cloth, and gently wipe your ears."

I hope no one ever needs to use this information, but I found it helpful after doing some research. I would have never known about the conditioner thing if I hadn't been on the website.