There are numerous tens machines available and for years I used one I bought from Boots, but the latest range of high tech ones are much better.
The itouch Plus TENS unit offers relief from a wide range of pain: knee pain , shoulder pain ,and back pain, from a wide range of causes.
NICE guidelines for osteo artthritis and rhematoid arthritis recomend TENS as part of a pain management plan.
NHS Direct includes TENS as a treatment option for Back Pain, Frozen shoulder, period pain osteoporosis, and spondylitis.
Itouch Plus is a simple to use and effective dual channel TENS machine with comfortable output, gentle control, and extra choice of settings.
It has all the features of the “itouch easy”:
•One Touch Memory Start
•Comfort Strength Control
•Medically proven programmes
•Backlit LCD screen
•Customised Settings Ability to select, store and alter any or all of the parameters, such as frequency, pulse width, mode and time to suit. Thereby producing "tailor made" individual programmes of choice.
•Usage Diary Facility that remembers how long, and at what strength the unit has been used in each setting. Only records when pads are connected to patient giving a true usage.
•24 Hour Clock 3 Daily Alarm Settings Programmable on a daily or permanent basis which can be used as medication reminders
It's available online from a number of health websites but its worth looking for the best offer on an item like this. I also think it would make a lovely Christmas present for someone who is suffering with pain.