Intractable sneezing: case report and literature review
S. Co
Intractable sneezing is rare; the 12th case is reported here. Various
causative factors have been identified in the literature; these include
psychologic problems, cervical lymphadenitis, epilepsy, and allergy. The
sneeze reflex consists of two phases, nasal and respiratory, which are
mediated by cranial nerves V and VII and by brain-stem respiratory centers.
Hypotheses that have been proposed to explain the multiple causation of
sneezing are the concept of the trigeminal system as a central neuronal
pool, optic-trigeminal summation, and parasympathetic generalization.
