(En español: Fiebre de heno)
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!