Isolate the stained area if possible. Remove stained cushions and place them on an old towel or sheet. If the stained area cannot be removed, cover up adjacent areas with an old towel to prevent cleaning solutions from accidentally reaching these areas.
Brush off any dried, solid pieces of the stain with your hand or a toothbrush. Remove as much dried material as possible before treating the stain. If the stain is thick or sticky, scrape off the excess with a butter knife.
Mix a gallon of warm water with 1/2 cup of dishwashing liquid in a bowl. Stir this solution until it is foamy.
Apply a small amount of the mixture to the stain with a soft-bristled brush. Work from the interior of the stain outward to avoid spreading the stain.
Blot away the stain as you work with a clean, white cloth. Fold over the cloth as you work to ensure you are blotting the stain with a clean portion of the cloth. Keep applying small amounts of the cleaning solution to the stain until the cloth remains clean when applied to the stained area.
Rinse the cleaning solution from the fabric by blotting the treated area with a clean, damp sponge.
Place towels over the wet area of the couch to absorb the moisture. Replace the towels periodically until the stained area is dry. Use a hair dryer on the lowest setting to help speed drying.