Allergy is one of the most common long-term health conditions. Allergies arise when the body’s immune system overreacts to substances called allergens, which are normally harmless. If a change in the seasons suddenly brings on sneezing, itchy eyes, or a runny nose, allergies may be to blame, and most people with allergies are sensitive to more than one allergen. Learn more about allergies and how to find relief: https://newsinhealth.nih.gov/2016/06/seeking-allergy-relief #NIHhealthy2020 | Nation