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Rhinitis begins when the blood vessels in your nose are triggered to enlarge by one of the many causes of rhinitis. This leads to the inflammation and swelling that causes symptoms like runny and stuffy nose. This swelling of your blood vessels may be triggered by a variety of causes, such as allergies or a virus.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.