Used exactly as directed, PAM is a sure cure for mites. Whenever I have had to treat a snake, I always pre-treat a plastic tub with PAM and let it dry. Then, when I take the snake out of the tank/tub to treat it, I put the snake in the already treated tub. This way they get the benefit of PAM while I wait for their tank to dry and no mites escape.

I do this with all new snakes as a precaution. Since doing this, I have not had a mite problem at all.