For cotton and polyester: With a dull knife, scrape off any dried residue. Pre-treat stain with liquid laundry detergent. Machine wash according to garment care label. If stain persists, mix a solution of ½ cup liquid laundry detergent per one gallon of water in a plastic bucket. Soak garment for up to 30 minutes. Machine wash again.
For washable silk and wool: With a dull knife, scrape off any dried residue. Place the garment stain side down on a towel. Apply a commercial stain remover that is safe for the fabric to the back of the stain. If stain persists, take the garment to a dry cleaner.