Is acyclovir (Zovirax) effective in the treatment of Bell palsy (idiopathic facial paralysis) (IFP)?

Updated: Jun 14, 2019
  • Author: Danette C Taylor, DO, MS, FACN; Chief Editor: Selim R Benbadis, MD  more...
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One of the 3 studies—a double-blind, randomized trial from Scotland involving 551 patients with Bell palsy who were recruited within 72 hours of symptom onset—demonstrated that early treatment with prednisolone can significantly improve the chances of complete recovery at 3 and 9 months. [12] In contrast, acyclovir given alone did not show any significant difference in the rate of facial recovery compared with placebo, and there was no additional benefit from combining acyclovir and prednisolone compared with prednisolone alone.

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