Can you please explain the differences between year-round and seasonal allergies?

Allergy exposure. Year-round allergies are those that are due to things that you are exposed to all year long (cat, dog, dust mites, cockroach, and some indoor molds). Seasonal allergies are allergies that occur due to sensitivity to pollens (tree pollens in the spring, grass in the late spring/early summer, weeds in the late summer/early fall, and some outdoor molds in the fall).
They are similar. The body "overreacts" to a substance ... Which doesn't usually affect us... And causes runny nose sneezing itchy eyes etc...Seasonally this means pollen or outdoor mold spores .. Year-round it includes pets dust mites etc. The treatment is similar.