Check the paint type on the dress
Scrape off any excess paint gently with a dull knife or spoon
Rinse the stained area with cold water from the back of the fabric
Blot the stain with a clean cloth
Apply liquid laundry detergent or dish soap to the stain
Gently rub the fabric together or use a soft brush
Rinse again with cold water
Repeat until the stain fades
For water-based paint, soak the area in warm soapy water
For oil-based paint, use a small amount of paint thinner or mineral spirits on a hidden test area first
Wash the dress according to the care label
Air dry the dress and check the stain before using heat
Repeat treatment if needed before drying completely