There is controversy on the management of the idiopathic facial nerve palsies (Bell’s palsy). About two out of every three patients have a nerve conduction block alone and recover completely in less than one month.1 The rest develop denervation of the facial muscles to a varying degree and never recover completely. In addition, contracture of the facial muscles may occur, with severe disfigurement. About 10% of all patients with facial palsy have complete denervation and serious sequelae.2 Using electromyography3 and measurement of the anodal galvanic threshold4 an accurate prognosis can be given within the first week.
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