Tens For Pain Relief

TENS Unit

Some individuals with pain may need alternative methods for pain relief. There can be many different reasons for this, such as severe reactions or allergies to pain medications. Transcutaneous Electrical Nerve Stimulator units, or TENS units, work by delivering small electrical currents into the area of pain through electrodes that are placed on the skin. There is little research available that has proven the effectiveness of TENS units on relieving pain.

How They Work

TENS units work in two different ways: they can be set on high pulse levels (90 to 130 Hz) or low pulse levels (2 to 5 Hz). The high pulse levels are thought to close the pain-signaling nerves in the body. The idea is that if you do not get a signal from the brain saying that you are hurting, then you will feel no pain. If the TENS unit is set on low pulse levels, it is believed that this enables your body to produce its own endorphins, which have a narcotic-like effect.

Use TENS

Test the TENS unit before placing it on your skin. Attach the electrodes on clean, dry skin by applying a small amount of conducting gel to the pad of the electrode. The electrodes should be placed within an inch of one another. You may need to ask for help placing the electrodes in hard-to-reach places. Your physiotherapist or doctor will show you the exact location to place them. Turn the unit on to 100 Hz to start with. Gradually increase the level until you feel a slight tingling; your muscles should not contract. Do not turn the machine up too high, as this can cause pain from overuse. Each session should last at least 45 minutes but can be used up to 12 hours. Once you have completed your session, turn off the machine and disconnect it from the electrodes. Make sure to change your electrodes every 12 hours and check often to make sure the electrodes are not irritating the skin. Anytime you experience irritation you should remove the electrodes.

Cautions

To prevent injury, there are few precautions to take when using the TENS unit. Do not place the electrodes on broken skin, as this can cause further irritation. The electrodes should never be placed on the neck, or near the eyes and mouth. Do not place on areas that are numb. Do not use near water and do not use while driving.

Tags: pulse levels, TENS unit, TENS units, electrodes should, high pulse