Managing Allergies and Asthma Year-Round
Key Takeaways Understanding Allergies and Asthma Allergies are an overactive immune response to generally harmless environmental pollutants, like pollen, dust, pet dander, and other particles, known as allergens. Your immune response is intended to protect your body against harmful substances, but when it responds to harmless allergens, it causes an allergic reaction. When you breathe…