You need to get Provet-a-Mite: http://www.pro-products.com/index.ph...d=53&Itemid=59
Reptile relief is garbage and it won't get rid of the mites completely like PAM will.
Did you soak your snake in mineral oil? That is what it sounds like. That would explain why the scales are sloughing off like that.
You don't have to soak your snake in anything special to drown the mites on the snakes body. Plain old water and a drop or two of dawn dish soap will do the trick. But PAM (not to be confused with the cooking spray) is the only way to get rid of them for good and be done with it.