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These allergen antibodies migrate to mast cells lining the nose, eyes and lungs.

When an allergen drifts into the nose more than once, mast cells release a slew of chemicals or histamines that irritate and inflame the moist membranes lining the nose and produce the symptoms of an allergic reaction: scratchy throat, itching, sneezing and watery eyes.

The immune system also has strong influence on seasonal allergies, since it reacts differently to diverse allergens like pollen.

When an allergen enters the body of an individual that is predisposed to allergies, it triggers an immune reaction and the production of antibodies.

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The cypress pollen allergy brings a cross reactivity between diverse species like olive, privet, ash and Russian olive tree pollen allergens.16 states in the United States were named as “Allergen Hotspots” for large increases in allergenic tree pollen if global warming pollution keeps increasing.Therefore, researchers on this report claimed that global warming is bad news for millions of asthmatics in the United States whose asthma attacks are triggered by seasonal allergies.Indeed, seasonal allergies are one of the main triggers for asthma, along with colds or flu, cigarette smoke and exercise.In Canada, for example, up to 75% of asthmatics also have seasonal allergies.

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