I too have Scoliosis plus arthritis in my spine.
PT is very helpful, but being in water is the best exercise for me - even if it is just floating.
The other tool that has been very helpful is my T.E.N.S. unit. Sounds like the "electric impulse" treatment that you are trying.
You can buy your own unit from a pharmacy/healthcare centre.
There is not one thing that will bring relief, but you can find a combination of treatments that may give some relief, some of the time.
All the best.