I have had facial numbness for 4 weeks. lips and chin. i doe have anxiety and been on benzodiazepine therapy for 6 yrs. with no relief. i?

Rule out fosmn: Facial onset sensorimotor neuronopathy (fosmn) is a recently described neurological syndrome characterized by slow onset of facial sensory abnormalities and subsequent development of motor deficits facial onset sensorimotor neuronopathy (fosmn) is a recently described neurological syndrome characterized by slow onset of facial sensory abnormalities and subsequent development of motor deficits.