Allergies

On top of commonly known symptoms like itchy eyes and a runny nose, allergies can also cause rashes and headaches. However, fatigue is common as well.

Pollen, dust, and food are often environmental causes of allergies. But what role, if any, do genetics play in whether or not we have allergies?

Many Americans have seasonal allergies and struggle to find relief. Here's everything you need to know about the causes, symptoms, and treatments.