Start by checking your humidity where you keep it, it should never be less than 50, when they go into shed I like to pick it up to 60-70 by misting the cage. If you keep up humidity then you won't run into this.

For the immediate problem, a bath for ~15min in warm water then rubbing its skin gently with your hands should make it come right off.

The serious part is if the eye caps (scales over the eyes) came off. From the picture kind of looks like they did but I'm not sure. If they didn't you'll need to assist in removing those too, but I've never had to do that myself so I'll let someone else explain that.