Oh gosh, that looks like some fungal infection or some heavy velvet going on. You need to post this into the disease section right away.
I would put her in a quarantine container (if she lives with other animals or in anything bigger than a 2 gallon) so that you can treat her easier. For now, if you have it, I would use 3 teaspoons of dissolved Aquarium Salt to help either get rid of what she has, or ward off anything else and hopefully stop this illness in it's tracks. If it is possible, can you raise the temperature up to about 85 degrees? That will help kill fungal stuff, but if it's bacterial we're going to need some more help.
So I would post those pictures in the Disease section so you can get some other help on treating her a.s.a.p.!