You are diagnosed to have L5 S1 disc prolapse
and you have severe neuralgic pain because of it.
Lyrica dose to be increased for relief from neuralgia
Cymbalta contains duloxetine
which is a selective serotonin and norepinephrine reuptake inhibitor
which when used reduces neuralgic pain, dose range from 20 mg to maximum 60 mg daily.
If symptoms still persists you should consult neurosurgeon ,for epidural steroids.
Hope this will help you
Dr Sandhya Manorenj
Hi Tech city Hyderabad