Description
Interferential therapy (IFT) is a commonly used modality in physiotherapy practice for pain relief. Pain relief is believed to be achieved through the production of endogenous opioids like endorphins and enkephalins. What is TENS use for? Transcutaneous electrical nerve stimulation (TENS) therapy involves the use of low-voltage electric currents to treat pain. A small device delivers the current at or near nerves. TENS therapy blocks or changes your perception of pain.