Ditto on Black Knight being terrible for reptiles.
If your snake makes it, and you have mite problems in the future, Provent-A-Mite (yeah the product is actually spelled "Provent", a play on spelling since it's sold by Pro-Products) is the way to go.
There's nothing much you can do for your corn except just give it clean living conditions with correct husbandry, and hope for the best.