ELI5: Explain Like I'm 5

Sweat allergy

Okay kiddo, have you ever noticed when you play outside or exercise, sometimes you might get a little bit sweaty? Well, sweat is like a little bit of water that comes out of your body when you get hot. But did you know that some people can be allergic to their own sweat?

When someone has a sweat allergy, their body's immune system thinks that the sweat is something bad and tries to fight against it. This can cause things like redness, itching, and even hives or swelling on their skin. It's kind of like if your body saw a bug and decided to attack it even though the bug wasn't hurting you.

People with a sweat allergy might notice symptoms like itching or rashes when they get sweaty, especially in places like their armpits or on their hands and feet. But don't worry too much, because this kind of allergy is pretty rare and most people don't have it. If you or someone you know thinks they might have a sweat allergy, it's a good idea to talk to a doctor to figure out what's going on and how to treat it.