Call a local commercial dry cleaner to see if they can remove the stain. If one is not available, there are steps you can take at home. First, test a small, discreet piece of material to ensure no further damage to the article of clothing. Hand-wash the clothing (with a piece of paper towel underneath to absorb the stain) using a degreasing agent such as waterless hand cleaner. Then spray with a detergent and rub the stain continuously for five minutes and rinse with hot water. Repeat if necessary.