Interferential Therapy (IFT) is a type of electrotherapy used in physiotherapy for pain relief, reduction of swelling, and many other health benefits. It uses electric currents to stimulate tissue, and the major advantage of IFT is that it produces effects in the tissue exactly where required without unnecessary and uncomfortable skin stimulation. IFT works by using interferential rather than normal stimulation, which delivers continuous stimulation deep into the affected tissue, blocking pain and reducing swelling and inflammation that can cause pain.

IFT is used for the treatment of chronic, post-traumatic, and post-surgical pains, and it is widely used to elicit muscle contraction, promote healing, and reduce edema. It is also used for pain relief in conditions such as causalgia, herpes zoster, and neuralgia, cervical spondylosis, osteoarthritis of the knee, ankylosing spondylitis, rheumatoid arthritis, frozen shoulder, disc herniation, spinal canal stenosis, overuse injuries, surgical procedures, edema, inflammation, tennis elbow, and sports injuries.

IFT is a safe and effective treatment option for musculoskeletal conditions, and it is part of a comprehensive rehabilitation program where it can help decrease inflammation, muscle spasms, and pain while promoting tissue healing. Physiotherapists provide IFT therapy with other treatment modalities, such as exercise, stretching, and manual therapy, to help further maximize recovery and improve overall function. It is important to note that IFT may not be appropriate for everyone, and patients should consult with their healthcare provider to determine if IFT is a suitable treatment option for their specific condition.