Botulinum toxin treatment for facial palsy: A systematic review

Facial palsy may be complicated by ipsilateral synkinesis or contralateral hyperkinesis. Botulinum toxin is increasingly used in its management, however the optimum dose, treatment interval, adjunct therapy and performance as compared with alternative treatments has not been well established. This study aimed to systematically review the evidence for the use of Botulinum toxin in facial palsy.

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