What you need:
1 black candle
This spell should be cast during a new moon phase
cast a magical circle (hail to the guardians)
Next face the north and sit and meditate
Mix the herbs together in a fireproof bowl or cauldron
Get up and light your candles clockwise, all except for the black.
When you have lit your white candles, use a white candle to light
the black candle.
Then light the mixture of herbs and spices.
Whatever evil comes to me here
I cast you back, I have no fear
With the speed of wind and the dark of night
May all of your harboring take flight
With the swiftness of the sea
And all the power found in me
As I will, so mote it be
Then in a loud voice say
I cast you out!
and blow out the black candle as hard as you can (careful or any melted wax will blow off the candle).
let the mixture burn, then draw an eye on the candle and wrap it in a
white cloth and bury it in your back yard.