Wet a bunch of newspaper with water and put it in a good sized rubbermaid. Then put her in the rubbermaid with the wet newspaper. Put the lid (be sure to drill some holes in the top beforehand) on and let her sit in there for a while, a couple hours even. Be sure to secure the lid so she can't get out (duct tape or something heavy on top of the lid should work). We do that with our ball python when he has a hard time shedding, it works every time.

Hopefully she'll eat after she sheds. Have you been feeding her frozen/thawed, fresh pre-killed or live? Mice or rats? You may want to try something different than what you've been trying. We have some picky snakes, our ball python is our pickiest. He's plenty large enough to eat rats, but he refuses them, he only wants mice. He also won't eat frozen/thawed and for a long time he'd eat fresh pre-killed. Less than a year ago he started on a hunger strike and my husband gave in and tried feeding him live, he went right for it (minutes after refusing a fresh pre-killed mouse). Sadly now that's all he'll take. My husband is always very careful though to stay with him and watch him. My husband also always removes the mouse right away if our snake isn't showing interest in it. Also if you feed live food please feed mice and not rats, if your snake got bit a rat would cause a lot more damage than a mouse. I hope you're able to feed frozen/thawed or fresh pre-killed though, it's so much safer for your snake. Luckily our other 4 snakes all eat frozen/thawed.