Heat therapy, also known as thermotherapy, is a therapeutic technique used in physiotherapy to relieve pain, promote relaxation, and enhance healing. This method involves applying heat to specific areas of the body, typically through heating pads, warm towels, or therapeutic ultrasound devices. The warmth increases blood flow to the treated area, which can help relax muscles, reduce stiffness, and alleviate pain from conditions such as muscle strains, arthritis, or chronic pain syndromes. Heat therapy is often used in conjunction with other physiotherapy treatments to improve overall outcomes and facilitate rehabilitation.