For cotton and polyester: Rinse the garment in warm water to dissolve hardened residue. Pre-treat with liquid laundry detergent or stain remover. Machine wash according to garment care label. For washable silk and wool: Blot stain with a gentle liquid laundry detergent, such as Ivory Snow, and warm water. Flush stain with warm water. With an eye dropper, apply a solution of one part vinegar to two parts water. Blot with detergent and water again. Flush with warm water again. Air dry.