Many people experience seasonal allergies, with symptoms including runny nose, cough, watery eyes and congestion. Common allergens can include, pet dander, mold, dust mites and pollen. Learn more about allergens, allergic reactions and managing allergy triggers from pulmonologist Andrew Martin, MD, on the Hurley in the Morning radio show. Asthma, a chronic lung disease, affects more than 25 million people in the U.S. An asthma attack causes inflammation of the airways, excess mucus production and muscles surrounding the airways to tighten, making breathing difficult. Allergy-induced asthma is asthma triggered by substances that cause allergies. Dr. Martin explains symptoms, diagnosis and treatments for allergy-induced asthma.