What is the role of botulinum toxin (BTX) 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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Answer

Botulinum toxin can be injected transcutaneously or subconjunctivally at the upper border of the tarsus and aimed at the levator muscle to produce complete ptosis and to protect the cornea. [4] Botulinum toxin may help in relaxing the facial muscles after they have developed mass contraction, though the results are not as satisfying in patients with Bell palsy as in patients with idiopathic hemifacial spasm.


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