Nasal Congestion Since Childhood

Allergic rhinitis and allergic asthma are common primary indications for allergen immunotherapy Immunological changes from immunotherapy include a decrease in mast cell and basophil degranulation, early increase and later decrease in allergen-specific IgE levels, increase in allergen-specific IgG, IgG4 and IgA levels, increase in regulatory T cells with an increase in IL-10 and TGF-β, and an immunological skewing from Th2 to Th1 Cat, dust mites, ragweed and grass extracts are the only standardized environmental allergen extracts in the United States