In one embodiment, the apparatus has two planar anterior surfaces, and two posterior planar surfaces located such that the two anterior surfaces are at the front of the apparatus and the two posterior surfaces are at the rear of the apparatus. Opposite anterior and posterior surfaces flare outward and downward relative to each other at angles of about 20 degrees. As seen from an upper plan view of the apparatus, adjacent surfaces form an angle of 90 degrees. A cavity is formed in the apparatus from the lower end for receiving a person's head with the anterior surfaces being located at the front of the person's head and the posterior surfaces being located at the rear of the person's head. In using the apparatus, the patients head is vibrated and the patient wearing the apparatus lies on the floor with the apparatus on and sequentially places the posterior right, posterior left, and anterior left planar surfaces against the floor or the posterior left, posterior right, and anterior right planar surfaces against the floor depending on which ear is effected.
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