I myself use mineral oil. While the oil does not in itself "kill" mites like poison does, it does smother them and the eggs. I also put my animals in a diluted lystrine soak before rubbing them down with the oil. My treatment came from a vet text book on reptiles. This treatment was used before the advent of P.A.M. and such. I repeated the treatment in two weeks just as a precaution, and all mites were gone. Haven't seen them since, and this was several years ago.