Fever and Chills
If you want someone overcome by fever and chills, tear a small piece from the clothing you’ve stolen; wrap the piece around the top of a dark brown candle. (Don’t use black; it could kill him.) Then light the candle. As his clothing burns, his temperature will rise. When the ashes cool, he’ll shiver and tremble. You can continue casting this spell night after night until the whole garment is burned up; by then you should be well avenged for the evil done to you.