3 Double-blind Study of the Use of Transfer Factor (TF) Combined With Sublingual Immunotherapy in Management of Patients With Allergic Rhinitis in Mexican Population

Background Allergic diseases affect 20% of world population and allergic rhinitis (AR) is the most common, alone or associated with asthma. Antigen-specific immunotherapy has been world-desensitizing type studied showing that it is capable of modifying the natural history of the disease through changes in the immune response increasing the role of clones of lymphocytes T helper type I (LTh1) and inhibiting the activity of type 2 (LTh2). Dialyzable leukocyte extract or transfer factor (TF) has shown the same stimulatory effect.