How is hay fever related to hay?

Answer:
Not concrete on this, But I would believe its origin lies in "Old Wive's Tales", that generally revolve around what was observed by being near or in hay and gaining a fever afterwards.
Hay Fever is another term for seasonal allergies. Seasonal allergies are often pollen related, and hay tends to be a producer of particularly allergy inducing pollen.
First answer by Deukal. Last edit by Brainmaster1. Contributor trust: 2 [recommend contributor recommended]. Question popularity: 2 [recommend question].