What is a common symptom of allergic rhinitis?

Nasal congestion is a hallmark symptom of allergic rhinitis, which is an inflammation of the nasal passages triggered by allergens such as pollen, dust, or pet dander. When exposed to these allergens, the immune system responds by releasing histamines and other chemicals, leading to swelling in the nasal tissues and increased mucus production. This results in a feeling of blockage or pressure, which characterizes nasal congestion.

While other symptoms like throat soreness can occasionally occur due to post-nasal drip and ear pain can arise from related conditions, nasal congestion remains the most directly associated symptom with allergic rhinitis. Understanding these symptoms is vital for effective diagnosis and treatment of allergic conditions.