Any fracture to the leg or arm should be considered a medical emergency. Don't try to straighten or adjust the bone. This can damage the bone. It can injure nearby blood vessels and nerves. If there is an open wound, cover it with a clean cloth. This is to keep it from getting dirty. It can help prevent infection. Apply gentle pressure if the area is bleeding. Splint the injured arm or leg to protect it from further injury. Loosen the wrap around the splint if there are signs that the wrap is too tight. Signs include numbness, tingling, increased pain, swelling, and cool skin below the wrap.