People can develop allergy symptoms for the first time at any age – even through mid-life. In children, allergies can sometimes diminish as they grow older. Prompt care and treatment can help diminish allergy symptoms.

People are not born with allergic rhinitis, but develop it after they are exposed to allergens during the first few years of life. For both males and females, the percentage of people with allergic rhinitis is highest during the later teenage years, stabilizes during the adult years, and gradually decreases during middle and advanced age.