I wouldn't worry about it...except you said she's been like that for a week. Has she been soaking for a week? How's her activity level? The stringy slimy stuff is shed skin and would be normal, except frogs usually eat it and it doesn't just stay like that for a week.

If she's been not climbing around and hasn't gotten out of the water and higher humidity doesn't help, I suggest trying to find a vet. Good luck.