- Frey’s syndrome, also known as auriculotemporal syndrome or gustatory sweating, is a phenomenon where a patient develops sweating while eating following facial nerve injury.
- This is thought to be due to abnormal reinnervation of cholinergic skin sweat glands (which typically have sympathetic innervation) with parasympathetic fibres which control salivation.
- Frey’s Syndrome most commonly occurs in the context of parotidectomy or traumatic parotid injury.
- Compare this with Bogorad Syndrome (aka. crocodile tear syndrome), which causes lacrimation while eating.
Last updated October 06, 2022
