<prompt> Freys syndrome is caused byPost traumatic nerve fibers of facial nerve with parasympathetic of auriculotemporal nerveGreater auricular nerve with auriculotemporal nerveFacial nerve with greater auricular nerveNone  <response>: Frey;s syndrome results from parotid surgery due to aberrant regeneration of parasympathetic fibres of the facial nerve and auriculotemporal nerve. Ref: Dhingra 6th edition pg. 98 