What is an allergen?
Allergens are organic particles, which attach to the nasal mucosa or respiratory mucosa and lead to the development of an antibody, which creates a series of chemical reactions leading to allergic symptoms. Everybody’s reaction to an allergen exposure is different. The same amount of exposure to allergy particles can cause mild, moderate, or severe reactions in different people. Some may not have any reactions at all. Those with moderate to severe reactions will have symptoms.