You need to do more research on this to do it, but RID for lice works. The active ingredient needs to be permethrin as mentioned. Don't put it on the snake directly and make sure it is properly diluted to be safe. There are threads on this site that will describe but figured this is a point in a good direction. I wouldn't personally put anything directly on the snake except the mite spray at the pet store that was mentioned as being sold by Petco.