Allergy shots versus Allergy drops? What's right for you?

Understanding Your Condition

What are allergies?

An allergy is a reaction your body has to a substance around you. This summary talks about allergies to particles in the air such as pollen, dust, pet dander, or mold. Allergies happen when your immune system (the system that protects your body from germs) reacts to one of these particles (called “allergens”).

This reaction by the immune system is what causes allergy symptoms. Allergy symptoms from allergens in the air (airborne allergens) can include:

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