The treatment of Bell palsy remains a matter of debate. A recent update of the American Academy of Neurology practice parameter concluded that corticosteroids should be offered to increase the probability of facial nerve recovery. The benefits of antiviral treatment, however, have not been established.
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Berg, T., Jonsson, L. Corticosteroids and antivirals in Bell palsy. Nat Rev Neurol 9, 128–129 (2013). https://doi.org/10.1038/nrneurol.2013.8
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DOI: https://doi.org/10.1038/nrneurol.2013.8