It is a process of the body’s excessive response to allergens, which develops when the body’s immune system becomes sensitive. While allergens are both triggers and responsible for an inflammatory process, some triggers can also cause a chronic inflammatory process. Allergic rhinitis occurs in two different ways: 1. Symptoms of seasonal allergic rhinitis may occur in spring, summer and early autumn. They often cause allergic sensitivity to airborne mold spores or pollen from grasses, trees, and weeds. 2. Some allergic patients experience symptoms throughout the year. They can often be caused by dust mites, pet dander, cockroaches, or mold. If you suffer from hay fever (allergic rhinitis), it is because your immune system perceives harmless inhaled pollen or other allergens as dangerous substances invading the body. Your immune system overreacts to allergens. Chemicals such as histamine and leukotrienes are released into your bloodstream. This swells the nasal cavity lining and sinuses. It also triggers other symptoms associated with hay fever, such as sneezing. Allergic Rhinitis Symptoms Prolonged, sometimes severe sneezing Itchy nose, ears, eyes, throat and palate Ear pressure or fullness · Runny nose Postnasal discharge causing cough · Nasal congestion · Fatigue and/or weakness · Dark circles under your eyes Treatment of allergy depends on how frequent and severe your attacks are. Whether you have allergic rhinitis will be determined based on your symptoms and physical examination. For more, skin and blood tests may be done to see how your body reacts to certain substances. Blood tests show whether your body makes blood proteins called antibodies in response to allergy triggers