For this, you need

  • Quartz-, Opal-, Jade-, Calcite-, Sun-, Amber- or a Moonstone
  • Sage
  • A bath

So, take a bath and take the sage in the water. Then take your stone and imagine its energies going through your body, while you are chanting:

Et maledixi alieni inveterati sunt, et ejus navitas vt purificentur, transire per virtutem data est mihi a natura quam ego nunc praecipiam ut sit ait ista maledictio meus de via, et nunc, et veterascet et abierunt