We
report a 43-year old
woman patient presented with contralateral
trigeminal neuralgia induced by tactile stimulation and
mastication after
Bell's palsy.
Trigeminal neuralgia is characterized by recurrent episodes of intense lancinating
pain affecting the
face localized to the sensory
supply areas of the
trigeminal nerve. Increased excitability of facial
motor neurons and bainstem
interneurons which mediate trigemio-facial
reflex are
thought to be the cause of contralateral
trigeminal neuralgia after
Bell's palsy.