For wounds that have healed for more than two weeks after burns, doctors recommend wearing elastic sleeves or elastic bandages to prevent and reduce scarring.

So what is pressure therapy? What is the treatment mechanism?

Compression therapy is an elastic sleeve made of elastic fabrics in the corresponding parts, such as face masks, elastic stockings, etc., to continuously compress the healing area of burns and scalds, so as to prevent and reduce the contracture of scar hyperplasia in the skin graft area and the edge.

The mechanism of the histopathological changes in compression therapy is not clear, but it may be that pressure induces ischemia, activates tissue metabolism, and increases collagenase activity. Due to local hypoxia-ischemia, the number of capillaries is reduced, the blood supply to scar tissue is reduced, the partial pressure of oxygen in cells is reduced under hypoxia, and the function of mitochondria is reduced or even stopped. Morphological changes occurred at the same time. Such as mitochondrial swelling, vacuolar degeneration and so on. In this way, mitochondria, which are mainly used in cell biological oxidation, cannot release energy well in a series of oxidative phosphorylation processes, resulting in inhibited proliferation of fibroblasts, and finally degeneration and necrosis. The function of generating collagen fibers and matrix is greatly reduced. This results in a thinning and softening of the scar. Collagen fibers can be arranged in parallel, and the spiral collagen structure can be rearranged, thereby softening and flattening the scar.

Compression therapy should be performed from the time the wound is basically healed. Early pressure therapy can control scar hyperplasia, promote scar maturation and softening, and prevent joint contractures and deformities.