[WATCH]: allergic rhinitis - demonstration by video

reference from www.allergy.hk Allergic rhinitis is caused by inflammation of the lining of the nose due to exposure to allergens. Symptoms include sneezing, itching, clear nasal discharge, post-nasal drip and congestion. Many patients with allergic rhinitis also suffer from allergy symptoms in their eyes. Allergic rhinitis is most commonly caused by allergy to house dust mites, animal dander, cockroaches, mold spores and pollens. Environmental and industrial chemicals can also cause allergic rhinitis. Allergic rhinitis can cause significant morbidity, especially in children. Nasal congestion often leads to poor quality sleep or even sleep apnea, and results in chronic tiredness, hyperactivity and learning difficulty. Chronic mouth

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