ABSTRACT
The evidence for the effectiveness of immunotherapy for asthma caused by exposure to an aeroallergen is by no means as extensive as that for hay fever but, in general, it tells the same story. Ragweed, grass and birch pollen, cats, dogs, house dust mites and moulds have all been studied. The majority of controlled trials demonstrated beneficial effects of immunotherapy in both seasonal and perennial allergic asthma. However, despite continued use by specialists in allergy and immunology worldwide, immunotherapy for asthma is a perennial target for criticism by nonallergists who also care for patients with asthma.
