What Causes Allergies

What Causes Allergies

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What causes chronic allergies and allergy symptoms, will your allergies stick around for the rest of your life or might they get better or even stop webmd explains. Types of allergies aafa org, allergies are diseases of the immune system that cause an overreaction to substances called allergens. I never had allergies before how did i get them pollen com, learn all about allergies and what causes allergy learn how allergens can cause sneezing itchy watery eyes and a runny nose also find out about environmental.

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