This document discusses allergic rhinitis and vasomotor rhinitis. Allergic rhinitis is an immunological response to airborne allergens like pollen or dust mites, characterized by sneezing, runny nose, and nasal obstruction. Vasomotor rhinitis has similar symptoms but is non-allergic and its cause is unclear, thought to involve autonomic nervous system stimulation. Both can be treated with antihistamines, nasal steroids, and other medications, while allergen avoidance helps with allergic rhinitis.
5. • IgE produced by plasma cell- FC fraction bind
to mast cell, FAB combines with antigenic
substance- degranulation of mast cells-histamine
release, slow releasing substance of
anaphylaxis
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10. • Atopy
– Tendency to develop an exaggerated IgE antibody
response to one or more allergen
– Allergic disorder include allergic rhinitis, asthma,
eczema
– Genetically inherited
11. Types
• Seasonal allergic rhinitis (Hay Fever)
– Inhaled allergen- pollen grain
– Certain season –spring, autumn
• Perennial allergic rhinitis
– Occur throughout year
– Caused by house dust mite etc
12. Clinical features
• B/L nasal obstruction
• Rhinorrhoea
• Paroxysms of sneezing
• Hyposmia
• Itchiness of nose, eyes, palate
• Associated other allergy