What Is a Pollen Allergy? Pollen is a yellow powder made by plants as part of their reproductive cycle. It floats in the air and can enter your mouth, nose, and eyes. Pollen is usually harmless.
PORTLAND, Ore. (KOIN) — Allergy sufferers may find some relief this week as rain returns to the forecast. Itchy eyes and runny noses will continue for those impacted by seasonal allergies this week.