Soaking actually does drown the mites, so give her a nice long soak in some luke warm water to help get them off.
In the meantime, order PAM and Reptile Relief ASAP as those will be the most effective treatments. Check it out, we have a little guide on taking care of mites to help you out
http://lllreptile.com/info/library/c...h-snake-mites/
Good luck! They're a pain, but they're not the end of the world.
-Jen