To see if it would work, I had to have pain-blocking injections of local anaesthetic and steroids.
The paramedics gave me Valium as a muscle relaxant and the painkiller Tramadol.
It sounded great, so I agreed to have it straight away.
The first part - they treat one side at a time - was scheduled for the following month and the other side a month after that.
After the jabs, which I had in November, my wife said it was the first time she'd been able to look at me without seeing the pain on my face.
Because that treatment went well, I had the surgery a month later.