Make a bleach water solution using 1 oz of bleach to 30oz to water in a spray bottle. Protect the underside of your fabric to absorb any excess moisture. Spray solution in a fan spray and wet the entire side where the stain is. Wipe the entire cover with a clean cloth to remove excess moisture. Then spray the same are with clean water to rinse the bleach solution. Wipe the area with a clean with a clean cloth to remove moisture. Allow to dry or use a hair dryer.