For cotton and polyester: Soak garment in cool saltwater for a few hours. Rinse thoroughly. Mix one tablespoon of ammonia with ½ cup water. Apply solution to stain. Machine wash according to garment care label. If stain remains, 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. Rinse and machine wash again.
For washable silk and wool: Dab cold salt water onto stain. Flush with plain cold water. Use an eye dropper to apply a half-vinegar, half-water solution. Flush with cold water again. If stain remains, take garment to a dry cleaner.