A nasal dilator capable of introducing separating forces in the nasal outer wall tissue, has a resilient member, and a pair of spaced-apart end surfaces which can be forced toward one another from an initial flat position of the dilator to thereby substantially reduce the direct spacing therebetween by an external spacing reducing force. This results in restoring forces in the dilator tending to return it to the original direct spacing between the end surfaces. The resilient member, which is asymmetrical with respect to a centerline of the dilator that is parallel to the long axis of the dilator, has an extended surface at each end surface of the dilator which increases the adhesive surface area. The extended surface is located at each end surface of the resilient member on the side opposite the nose ala (wings) and above the alar furrow. An adhesive on the bottom surface of the resilient member adhesively engages exposed surfaces of the nasal outer wall tissues known as the lateral surface sufficiently to keep the dilator attached to the lateral wall while subjecting them to the restoring forces.
