<prompt> Nerve involvement in Frey;s syndrome isTrigeminalMandibularAurico temporalLingual  <response>: Auriculotemporal nerve. Freys syndromegustatory sweating results from damage to the autonomic innervation of the salivary gland with inappropriate regeneration of the postganglionic parasympathetic nerve fibres of the auriculotemporal nerve that aberrantly stimulate the sweat glands of the overlying skin. Reference : Bailey love, 27th Edition, page no 794 