Why is Oklahoma such a challenging place to live for seasonal allergy sufferers?

Every year, the Asthma and Allergies Foundation of America puts out an Allergy Capital report which ranks the top 100 large US cities if you suffer from pollen-based seasonal allergies. Oklahoma City and Tulsa regularly make the top ten. In this episode, Rachel Hopkin looks into what makes the Sooner State so challenging for the seasonal allergy afflicted.