A composition and method for preventing or treating an olfactory triggered response within a subject. The method includes applying a thixotropic composition to a nasal cavity, the composition including an aqueous carrier and a viscosity agent, the viscosity agent being in the range of about 2.5% to about 15% by weight within the composition, wherein the composition is configured to change from a semi-solid form to a liquid form upon the composition being subjected to a threshold amount of shear stress, and to return to the semi-solid form upon the elimination of the amount of shear stress.
