What are allergies?

Allergies are when your body says “Hey, I don’t like this!” to something it thinks is a threat.

Imagine you’re playing with a friend who brings a super bouncy ball. You’ve never seen one before, it looks weird and moves fast. Your brain goes, “Whoa! That’s strange!” So it tells your body to get ready for trouble, maybe by making you sneeze or itch. That’s like an allergy: your body is reacting strongly to something it thinks is bad, even if it's not.

When you’re around something you're allergic to, like pollen, pet dander, or chocolate, your body acts like it’s under attack. It sends out tiny helpers called white blood cells to fight off the “invader.” But sometimes these helpers overdo it, causing symptoms like a runny nose, coughing, or even hives.

Sometimes your body gives you clues. If you start sneezing after playing with a dog or eating a cookie, that might mean you're allergic to dogs or chocolate. Doctors can check for allergies by giving you a little test, like a tiny pinch on the skin, and seeing how your body reacts.

Allergies are just your body being extra careful, even if it means sneezing in the middle of dinner!