Wear gloves and open windows for ventilation
Remove any solid material with paper towels or a plastic scraper
Blot the area with clean paper towels; do not rub
Mix cool water with a small amount of mild dish soap
Dab the stain with the soapy solution using a clean cloth
Blot with a dry towel to remove excess moisture
Sprinkle baking soda generously over the affected area
Let the baking soda sit for several hours or overnight
Vacuum up the baking soda thoroughly
Spray a 1:1 mixture of white vinegar and water lightly on the area if odor remains
Blot again with a clean cloth and let it air dry
Use an enzyme cleaner made for upholstery if the smell persists
Repeat the baking soda and vacuum process if needed
Place a fan near the couch to speed drying
Wash removable cushion covers according to the care label
Test any cleaning solution on a hidden spot first