Allergy-Triggered Asthma Many people who have asthma have some kind of allergy, too. With allergy-triggered asthma, a person's asthma symptoms (like coughing and trouble breathing) occur when the person comes in contact with an allergen. But not all asthma is caused by allergies, and not all allergies cause symptoms of asthma. Back to Articles Related Articles Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.