Abstract
The effectiveness of botulinum toxin injections for the management of Frey's syndrome was studied. Botulinum toxin A (approximately 0.5 Units/cm2) was injected intracutaneously into the affected skin area as determined by Minor's starch iodine test. Gustatory sweating in the treated skin area ceased completely within 1 week and has not reappeared (12 months follow up until now in the first treated case). There have been no side effects. It is concluded that local botulinum toxin injections are a highly effective and safe treatment for Frey's syndrome. Additional study is required to evaluate the duration of the therapeutic effect.
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