Allergen immunotherapy; Allergen-specific desensitization; Allergy drops; Allergy immunotherapy; Hyposensitization; Immunotherapy
Sublingual immunotherapy involves the administration of specific allergens by placement of allergen extract in a liquid or tablet formulation under the tongue for 1–2 min followed by swallowing (Canonica et al. 2009) and is conducted for the purpose of lessening or preventing the allergic symptoms due to exposure to those specific allergens (Cox et al. 2011).
Conventional subcutaneous immunotherapy is an effective treatment option for many allergic diseases such as allergic rhinitis, allergic asthma, and Hymenoptera allergy. Despite the benefits of subcutaneous immunotherapy, not all individuals improve, significant time and expense may be involved, and the risk of adverse reactions, such as anaphylaxis, remains (Casale and Stokes 2011). Thus, other forms of immunotherapy have been explored, and sublingual immunotherapy is...
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