What is Hay Fever?
Hay Fever occurs due to an abnormal reaction of the immune system to substances called allergens. For this reason, people who have been diagnosed with various types of allergies are most at risk of developing the disease.
Hay Fever occurs due to an abnormal reaction of the immune system to substances called allergens. For this reason, people who have been diagnosed with various types of allergies are most at risk of developing the disease.