Arachnoiditis in Lower Lumbar Spine

Hi, I'm treating a 55 year old male who has been recently diagnosed with arachnoiditis in his lumbar spine (cause seems to be secondary to dye used in multiple myelograms performed previously?). Has anyone treated lumbar arachnoiditis or have any physio treatment ideas for this condition? He has been presenting with a myraid of lower (and upper limb symptoms) including muscular spasms leg muscles, severe low lumbar and coccyx pain restricting sitting, tingling etc in legs, which I'm treating symptomatically. I am considering recommending a short chronic pain management course at this stage. Thanks for your help!

Hello ,
U r right start with the pain management course .