For sanity sake when a noobie asks how to treat mites we should not say "PAM"... we should say provent-a-mite http://pro-products.com/provent-a-mite/

I can see someone now going to their kitchen cabinets getting the cooking spray and spraying their snake.

anyway so aside from provent-a-mite i would also do a daily soak in warm water (about 90degrees) with a few drops(about 3 drops to every 1.5 gal of water) of hand soap. have the water level in the tun you are soaking them in just a touch deeper then their backs are off of the ground. you dont want the snake to have to swim the whole time but enough to cover most of their body with water. let them sit in there for about 30min to and hour.

The idea with that is to drown out the mites. the soap helps minimize the chance of them having an air bubble with them under the snakes scales.

but i would say you should really use as many tactics as you can. mites are hell.