Wounds healed more than two weeks after burns, doctors recommend wearing elastic sleeves or elastic bandages to prevent and reduce scars. So what is stress therapy? What is the mechanism of treatment?

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

　　 The mechanism of histopathological changes in compression therapy is not yet clear. It may be that the pressure causes ischemia, activates tissue metabolism, and increases collagenase activity. Due to local hypoxia and ischemia, the number of capillaries is reduced, the blood supply of scar tissue is reduced, the partial pressure of oxygen in cells is reduced under hypoxia, and the function of mitochondria decreases or even stops. At the same time, morphological changes occurred. Such as mitochondrial swelling, vacuole degeneration and so on. In this way, mitochondria, which are mainly used for cell biological oxidation, cannot release energy well in a series of oxidative phosphorylation processes, resulting in the inhibition of the proliferation of fibroblasts, and finally degeneration and necrosis, which greatly reduces the function of generating collagen fibers and matrix. This causes the scar to thin and soften. The collagen fibers can be arranged in parallel, and the spiral collagen structure can be rearranged, so that the scar can be softened and flattened.

　　 Starting from the basic healing of the wound, pressure therapy should be performed. Early pressure therapy can control scar hyperplasia, promote scar maturation and softening, and prevent joint contractures and deformities.