For cotton and polyester: Flush the stain with cold water. Pre-treat spot with an enzyme treatment, such as Era Plus. Let sit for 30 minutes. Machine wash according to garment care label.
For washable silk and wool: Flush the stain with 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.