ABSTRACT
Allergen immunotherapy (AIT) is the repeated administration of specific allergens to patients with IgE-mediated diseases, the purpose of which is to provide protection against the allergic symptoms and inflammatory reactions associated with the natural exposure to said allergens (1). This therapy is efficacious to treat patients with allergic rhinitis due to seasonal pollen allergens (2) (e.g., trees, grasses, and weeds) and for perennial allergic rhinitis induced by house-dust mites (3) and cat allergens (4). Similarly, AIT is effective in treating patients with aeroallergen-induced asthma attributable to sensitization with cat and grass pollens (2,5,6).
