If You Are Exposed To Any Of These Weapons

According to the experts, this is what you should do:

Chemical Weapon
Take off your clothes and put them into a plastic bag. Shower off and wash out your eyes with water. If the chemical weapon was released inside a building, get out quickly.

Nerve Agent
The gases tend to sink, so go to the highest ground you can get to.

Biological Weapon
Find a doctor as quickly as possible. There is something a doctor can do for some types of biological weapons, and the faster you get treatment, the better they will work.

Nuclear Weapon
The area is contaminated with radiation. Get away from the area and then go into a building. Take off your clothes and take a shower. If radioactive iodine is released in the bomb, you can take potassium iodide to protect your thyroid gland.

source: Newsweek