AI Overview

To get rid of stains on a white sofa, 

first blot the area with a clean cloth, then treat the stain with a DIY solution like a vinegar and water mix, or use a specialized upholstery cleaner. For stubborn stains, baking soda can be used as a paste or sprinkled on, and for delicate fabrics, professional cleaning may be necessary. Always blot instead of scrubbing and allow the area to air dry completely. 

General steps

• Blot the stain: Use a clean, dry cloth to blot up as much of the stain as possible. Avoid scrubbing, as this can push the stain deeper into the fabric.
• Test your cleaner: Before applying any cleaning solution to the stain, test it on an inconspicuous area of the sofa to ensure it doesn’t damage or discolor the fabric.