Neither provent-a-mite, nor nix bedding spray,(same thing) should ever come in contact with the snake. If it's used on the bedding and enclosure, it must be used according to directions. Very lightly and allowed to completely dry and air out for awhile before the snake is put back in. The enclosure should be well ventilated during this process and it's not recommended to replace the water bowl for a couple days afterward to be sure the snake doesn't track any residue into it.

There are spray on mite treatments that are for topical use which are safe for the snake but PAM and NIX are never to be used on the animal in any concentration.