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Allergic Rhinitis Allergic rhinitis in children: Rhinitis is a reaction that happens in the eyes, nose, and throat when allergens in the air trigger the release of histamine in the body. Histamine causes itching, swelling, and fluid to build up in the fragile linings of nasal passages, sinuses, and eyelids. Allergic rhinitis can happen on a seasonal basis or year-round. Year-round allergic rhinitis happens more often in younger children. There is usually a family history of allergic rhinitis. Causes of allergic rhinitis in children: The most common causes of allergic rhinitis in children are: Pollen from trees, grass, or weeds Dust mites Mold Cockroach waste Animal dander Tobacco smoke Sign and symptoms of allergic rhinitis in children: The following are the most common symptoms of allergic rhinitis. However, each child may experience symptoms differently. Symptoms may include: https://www.hanxinclinic.com/index.php/2019/09/30/allergic-rhinitis/