The present invention provides DNA vaccines for the treatment or prevention of an allergic response. The vaccines comprise the coding sequence for Allergen X or fragments thereof fused in-frame with the lumenal domain of the lysosomal associated membrane protein (LAMP) and the targeting sequence of LAMP. The vaccines allow for presentation of properly configured three dimensional epitopes for production of an immune response when administered to a subject. The vaccines can be multivalent molecules, and/or can be provided as part of a multivalent vaccine containing two or more DNA constructs.