0_Apprentice
I have horrible allergies
1_Wizard
I have allergies that are mostly seasonal but really bad allergies to corn pollen which is unavoidable since I live in Iowa. 
0_Apprentice
I have terrible allergies too- especially to cats. What other kinds of allergies are there?
1_Wizard
Food allergies and allergies to all types of pollen. That's why during certain seasons people develop hay fever especially during harvest.
0_Apprentice
What exactly causes allergies? 
1_Wizard
It's a hypersensitivity of the immune system that is triggered by things in the environment. 
0_Apprentice
How are seasonal allergies different from food allergies?
1_Wizard
Food allergies happen anytime you touch or ingest a certain food. Seasonal allergies happen during peak times of the year when pollen or other plants particles are in the air. 