Because of my uneasiness of a Provent-a-Mite direct application not being recommended, I've always stuck with Reptile-Relief, which uses no poisons/toxins of any kind and works best when directly applied to the animal.

http://www.exoticlizards.com/reptile-relief.html

You aren't, however, supposed to drown your animal in the stuff, it works wonders, overnight even.