As you know and have a strong belief on that someone put a spell on you then it make more problem in your life as compare to previous. Even if a person doesn't believe in spell will still take a toll on their life.
Make use of water, grind the garlic into a paste. Rub the paste on the souls of the afflicted person's shoes, and on the front step of his/her home.
Create a blessing with the Sun retribution Symbol invoking enlightenment and clarity. This will negate earth spells.