Okay, I think your snake has a retained shed but without being there I can't know for sure. This is a dangerous situation especially for small snakes. Here is my suggestion. Make up a warm shed container use a lid to trap the warmth in. Make sure there is also some water in the container. After 20 minutes of shed box time take her out, here's where it gets tricky. There are two easy areas to check for a retained shed. One is at the corners of the mouth and the other is the vent/cloaca. As soon as you take the snake out rub up in the jaw area or the vent. If there is a retained shed the shed should start to come off. To help get it loose I use running warm tap water. If the shed starts to come loose at the head you should be able to grab it and peel off the head and jaw area. Try not to break the dead skin, you are trying to loosen it so you can let her crawl out of it while you genitally hold in against her body. It will be like turning a sock inside out. Keep us posted on this situation. I think I did a post on retained sheds, I'll try to find it and bring it up on the page.