Far infrared patch is mainly applied to the skin surface, the effect is relatively deep compared to other ointments, thus can reach the soft tissue slightly deeper, promote local blood circulation, accelerate the local swelling, pain subsidence. It is often used clinically for bruising and pain caused by fall injuries, such as local soft tissue contusions, or sprains, or even swelling and pain caused by traumatic fractures. It can also be applied to pain caused by neck, shoulder, lumbar and leg pain or long-term chronic arthritis of the limbs, as well as pain arising from aseptic inflammation due to osteochondritis, all of which have relatively good effects. However, it must be noted that if there is damage to the skin surface or if the skin is allergic to the far infrared patch should not be used externally.