Bell's Palsy: The Spontaneous Course of 2,500 Peripheral Facial Nerve Palsies of Different Etiologies

A survey of the literature showed that no kind of treatment, including prednisone, was able to give a better prognosis. The use of prednisone raises a big ethical problem because no evidence of its efficacy exists and the euphoric side-effect induces a false feeling of benefit in the patients.