Allergens act as “triggers” causing people to experience symptoms like itchy eyes and throat, runny nose, congestion and in some cases asthma. Allergens are found indoors, outdoors and in things we eat. Insect stings can also cause an allergy. Contact with plants and both natural and synthetic substances (like latex) can cause a reaction. Medications are also known to cause allergic reactions.
Pollens from trees, grasses and weeds and mold spores are common outdoor allergens.
Maple, oak, elm, beech, birch, poplar, and ash trees are the primary trees whose pollen causes springtime allergies.
Grass pollen and ragweed are the most common late spring and summer allergens.
Indoor allergens are experienced year-round. Common indoor allergens include: animal dander, dust mites and indoor molds.
Stings from bees and fire ants can cause allergic symptoms.
Poison ivy, oak and sumac are common plants known to cause allergic reactions.
Common food allergies include: peanuts, tree nuts, milk, egg, soy, wheat, fish and shellfish, although other foods can cause allergies as well.