hi there, your daughter seems to be suffering from some disorder of the liver
or the blood wherein too much of unconjugated bilirubin
is being released into her blood stream causing the itching. Liver derangements are known to cause bruising as the clotting time of blood gets delayed. This unconjugated hyperbilirubinemia could be due to prehepatic causes like excessive hemolysis
of blood or could be due to hepatic cause wherein the liver is not able to process the bilirubin properly. Either ways it is a serious condition especially with bleeding and clotting disorder
and it will need to be addressed properly and treated accordingly. she will require specialist attention and so do not wait but take her to the physician and get her evaluated accordingly. Take care.