What Do Grayish Brown Spots On The Legs Indicate?

my granddaughter has grayish brown spots under the skin on her legs, they look like a bruise but when you rub them they lighten in color, only to return again. she doesn t complain of any discomfort, but they are on both legs and very numerous. She saw a homeopathic dr. that treated her saying that her liver was not functioning up to par. but the spots did not subside or go away. He says that even though her liver is functioning normal that it may take some time for the spots to go away. that has been several weeks now and they have not improved.