If you suspect someone is burning candles against you, try this, (in your shower or bathtub if neccessary):
Light Two Black candles at the exact moment of sunset on a Friday and let them burn Out.
As you light them intone:
"Beelbub, and all ye evil spirits, in the name of Astaroth and the Light and the Dark and the Gods of the Netherworld, remove thy curse and thy sting from my heart and mine, and against whomever casts a curse at me let it be reversed upon them. Let these candles be their candles, this burning their burning, this curse a curse upon them. Let the pain they direct at me and mine fall upon them."
Some say this should be repeated every night for five nights in a row, others that five friday's in a row is better.
In any case, the candles are lit precisley at sundown and allowed to burn out completely.
Do not use giant pillar candles; they burn too long.
(WARNING, DO NOT DO THIS REVERSAL UNLESS YOU ABSOLUTLY HAVE TO DO IT, IF THIS IS A LONG TIME ENEMY THAN THAT'S FINE. AS LONG AS YOU ARE NOT DOING IT TO HAVE FUN THERE WILL BE NO BACK LASH FROM THIS SPELL.)