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BACKGROUNDAllergic rhinitis is defined clinically by a combination of two or more nasal symptoms; runny nose, blocked nose, itching, and sneezing, when occur as a result of IgE-mediated inflammation following exposure to allergen. Its characteristic feature is local accumulation of inflammatory cells including T lymphocytes, mast cells, eosinophils, basophils and neutrophils. Nasal cytology is a very useful diagnostic tool in diagnosing nasal allergic disorders which allows clinicians to detect the cellular modifications of the nasal epithelium caused by exposure to either physical or chemical, acute or chronic irritations and to evaluate the different types of inflammation. Aims-1. To study the presence of eosinophils in nasal smear of patients with Allergic Rhinitis. 2. To establish the diagnostic importance of eosinophils in nasal smear of patients with Allergic Rhinitis.

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