Le syndrome de Lucie Frey et ses variantes (syndrome des flushs gustatifs unilatéraux). Revue à  propos d'une observation pédiatrique

The gustatory sweating syndrome in children, which is nearly always unilateral, is closely related to the auriculo-temporal syndrome, also known as Frey's Syndrome, that occurs in adults. It is characterized essentially by intense post-prandial sweating. Having encountered a child with this syndrome, we undertook a critical review of the literature, since Frey's Syndrome is often confused with food allergy. Diagnosis is based on the following criteria: I) the unilateral character of flushing in the facial nerve area, coming on while eating or shortly thereafter; II) its rapid regression; III) absence of associated symptoms. A history of prior trauma or infection in the facial nerve area confirms the diagnosis; complementary examinations, in particular, allergy tests, are then not necessary, except in cases with the very rare bilateral form. In children, there is a clear preponderance of boys (boy/girl ratio 4/1) and histories of difficult delivery requiring forceps (63%), in cases where the neonatal conditions are known. Allergists merit being reminded of this classic syndrome.