This article was taken from the July 2013 issue of Wired magazine. Be the first to read Wired's articles in print before they're posted online, and get your hands on loads of additional content by <span class="s1">subscribing online.
It can be useful in defending yourself from assailants, but what if you accidentally spray yourself with capsaicin? Fight back the pain with these hot tips.
Phone a friend
Temporarily blinded, mucus membranes on fire and choking, you'll need help. Make sure your buddies are on easy-access speed-dial.
Don't rub it!
Touching a contaminated area will help to open up your capillaries; the burning will increase tenfold, and it will spread.
Grab some milk
Splash whole milk directly on to the skin or get a friend to soak a clean towel with milk and lay it on the burn. It should help numb it.
Add bubbles
Mix one part washing-up liquid to three parts cold water in a big bowl and dip your face in it for ten to 15 seconds at a time.
Rinse & repeat
This can take up to 45 minutes -- change the water a few times. Once you can comfortably touch your face, rinse it between dunks.
Wait it out
Pepper spray (from oleoresin capsicum) is vicious stuff, but the effects will disappear after four to six hours, so stay calm and be patient.
This article was originally published by WIRED UK