* Injection of botulinum toxin A * Surgical transection of the nerve fibers (a temporary treatment) * Application of an ointment containing an anticholinergic drug such as scopolamine Cochrane reviews of interventions to either prevent or treat<unk>  have found little or no evidence to support their effectiveness or safety, and conclude that further clinical trials are needed.
Frey's syndrome
Renpenning's syndrome
Susac's syndrome
Wartenberg's syndrome
Villaret's syndrome
Banti's syndrome
Wilkinson's syndrome
Adams–Nance syndrome