Scar dressings are commonly used in managing burn and hypertrophic scars, although supporting evidence is lacking. Care providers commonly report improvements, however, and pressure therapy has been effective in treating ear keloids. The general acceptance of the treatment as effective may prevent it from being further studied in clinical trials. A long-term course of corticosteroid injections into the scar may help flatten and soften the appearance of keloid or hypertrophic scars. Topical steroids are ineffective. However, clobetasol propionate can be used as an alternative treatment for keloid scars. Scar revision is a process of cutting the scar tissue out. After the
Scar Elevated corticosteroid levels are implicated in striae development. Humans and other placental mammals have an umbilical scar (commonly referred to as to a navel) which starts to heal when the umbilical cord is cut after birth. Egg-laying animals have an umbilical scar which, depending on the species, may remain visible for life or disappear within a few days after birth. A scar is the product of the body's repair mechanism after tissue injury. If a wound heals quickly within two weeks with new formation of skin, minimal collagen will be deposited and no scar will form. When the extracellular matrix