For cotton and polyester: Rinse in cold water to dilute the stain. In a plastic bucket, mix a solution of ½ cup liquid laundry detergent per one gallon of water. Soak garment for up to 30 minutes. Machine wash in warmest water safe for fabric.
For washable silk and wool: Mix one tablespoon of gentle liquid laundry detergent (such as Ivory Snow) with one cup of lukewarm water. Using a white towel, dab stain with solution. With an eye dropper, apply a solution of one part vinegar to two parts water. If stain persists, take the garment to a dry cleaner.