What most of the people have been saying is a good idea: give her a nice soak for a couple minutes each day until she can get that shed off. When you take her out, let her crawl through a towel (use your hand and make a tunnel with it and apply LIGHT pressure) and see if that gets the shed off. When my girl had a bad shed I did that, and it worked like a charm, the shed came right off! Higher humidity in the enclosure couldn't hurt either.

BE CAREFUL with the water temperature though, what's mildly warm to us is hot to them, so a little hotter than room temperature should be perfect.