I'm a girl! Haha, e-dee, not eddie!
Riokeshen -
Did they say anything about the weight loss? Or why it wasn't eating? And I have heard before (I might be wrong) that using oil on a snake isn't recommended anymore.. anyways, water works just as well if you soak her and let her run though a damp towel afterwards.
I'm glad she went to the vet, but save up money in case she needs to go again, and be sure to get her the supplies she needs so that there will hopefully be no problems in the future - buying the correct items for her care now will help prevent other health related problems in the future.