Hay Fever Say: hay fee-ver No, hay fever's not when a horse is sick! It's the name of a type of allergy that people have to natural things like pollen from plants and flowers. If you have hay fever, you don't really get a fever – but you will experience a runny, red, itchy nose and eyes. So next time you go outside and start sneezing, hay fever may be to blame! Back to Articles Related Articles 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.