Starts with proper quarantine, new snakes should be kept in a different room at the opposite of your established animals.
Treat the enclosure that you will use for AT with PAM, than treat again 2 weeks.
I do not recommend home made brew unless you have the knowledge as it could cause neurological damage and it death.
Mites jump and can hitchhike on you, so again proper quarantine and working with established animals first and QT second is a must, that means once you deal with QT you do not go back were your established animals are.