I first used an interferential machine about three years ago when my neck had seized up, causing a blinding headache. One fifteen-minute treatment was enough to get the spasms to stop so I could do some exercises my physio had shown me, and a second session later that night helped ease the residual pain. I woke up the next morning feeling fantastic.

Same story with my sciatica and lower back pain- if it flares up, I put the interferential on to deal with the pain and spasms, do some gentle stretches and feel much better for it. I haven't needed a physio for nearly four years now.