I am very sorry to say that your wife is taking 2 drugs .Zerodol MR has Aceclofenac
and Tizanidine , a muscle relaxant
.Zerodol P has Aceclofenac and parecetamol.
She might have taken Zerodol MR only.An PPI inhibitor like Rabeprazole
can be added to reduce Vomiting .
As she was on these 2 drugs for two and half years,she developed complications .She has to be invstigated for Serum creatinine
,as these drugs can damage the kidney also.
She has to sleep on flat bed.Do not strain the Spine.
There is no medical treatment which cures this condition permanently.
Please consult Neurosurgeon whether Surgery can be done to cure her pain permanently.
Wish her good health