Dermatitis Say: dur-muh-TYE-tus Have you ever had a red, itchy rash on your skin? Then you've had dermatitis. Dermatitis is an irritation or swelling of the skin. There are lots of different kinds of rashes — some have bumps, some have blisters, and some are dry and scaly. They can be caused by a chemical (like a soap) that irritates your skin, or happen when you touch something you're allergic to (like poison ivy). Skin conditions like eczema or dandruff also can cause a rash. Back to Articles Related Articles Rashes Learn about rashes in a flash. Check out our article just for kids! Read More Poison Ivy Poison ivy can give you a nasty rash. Find out more about it - and the other plants that can make you itch - in this article for kids. Read More Word! Dandruff Dandruff is flakes of dead skin on your head that come loose all the time, but especially when you scratch your head, brush your hair, or pull a shirt over your head. Read More Eczema Everybody has dry skin once in a while, but eczema is more than just that. If your skin is dry, itchy, red, sore, and scaly, you may have eczema. Learn more about this uncomfortable condition and what you can to do stop itching! Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.