What's an Allergy?
An allergy is when someone's immune system overreacts to something that usually isn't harmful. Many things can trigger allergies, like pollen, some animals, foods, or a bee sting. Allergies can make your eyes water and your nose run, make your skin itchy and bumpy, make your throat and ears sore, and make your tummy ache. But if you have an allergy, a special doctor called an allergist can help you feel better again.