1) Rare neurological disorder caused due to damage to or near the parotid glands.

2) Damage to the auriculotemporal nerve often resulting from surgery


  • Redness in the cheeks
  • Experience of facial flushing
  • Sweating during mastication or activities that increase salivary flow
  • Feeling of uneasiness, discomfort, embarrassment
  • Pain or burning at affected area
  • The sweating around the ears, on the forehead, cheeks, and neck region


  • Partial or complete parotidectomy
  • Injury to the face
  • Congenital defect acquired after a surgery
  • Injury caused during delivery- might trigger
  • Sympathetic dysfunction and pathologic lesions within the parotid gland

Risk factors:

  • Advanced age (above 60 years)
  • Operation time>260 min

Diagnostic tests:

  • Diagnosis: based on the symptoms
  • Physical examination
  • Minor iodine starch test


  • Surgical transection of the nerve fibers
  • Reconstructive surgery
  • Surgical repositioning of the nerve fibers
  • Use of deodorants and anti-perspirants
  • Radiotherapy significantly reduces the incidence of gustatory sweating


  • Topical anticholinergic ointments (scopolamine, glycopyrolate)
  • Topical anti-per spirants (deodorant)
  • Topical a agonist (clonidine)
  • Botulinum toxin injections

Lifestyle Management:

  • Minimize surgical trauma
  • Having a minimally invasive surgery:
  • Transoral parotidectomy
  • Endoscopic surgery
  • Mini-Incision