For cotton and polyester: Pre-treat stain with liquid laundry detergent. Let sit five minutes. Machine wash with color-safe bleach in warmest water safe for fabric. Repeat if stain persists.
For washable silk and wool: Pre-treat stain with a gentle liquid laundry detergent, such as Ivory Snow. Let sit five minutes. Flush stain with cool water. If stain persists, apply a solution of one part vinegar to two parts water with an eye dropper. Flush with water again. If stain is still visible, take the garment to a dry cleaner.