Allergic disease including allergic rhinitis (AR) is domited by Th₂responses with increased production of IL-4 and inhibition of IFN-ϒ production BCG vaccination induced IL-12 production which promotes. Th₀ to Th₁ shift and stimulates IFN-ϒ production. The aim of this study is to determine whether BCG vaccination prior specific immunotherapy (SIT) could increase initial phase of SIT re…