Honestly, i wouldn't worry about it, as long as you offer something for her to rub on, she will get it off. Although a week and a half is a long time, it seems as if your humidity isn't high enough. Buy another hygrometer to make sure the one you have is accurate, cause if he isn't shedding it all within a couple days, then its obviously not high enough.

Soaking usually only helps for people who have incorrect husbandry and can't keep the humidity up high enough. But if you insist on doing so, then soak once he looks like normal, after the cloudy eye stage, they will go back to normal, then shed, so i would soak them in a tub with water half way up the body and a towel or pillow case inside the tub.