Nanamoms

I want to make a ring bearer pillow from my wedding dress which is about 35 years old!! Because my Mom just had it stored in a Cedar Closet in a plastic bag, it has yellowed. It almost looks like an ecru or off white not a true yellowed!

What would yall recommend that I wash it in to brighten it back up. I always hand wash the pageant dresses I work on with Dawn dish liquid but that is just to remove makeup and tanning lotion.

Of course, I will test it. Has anyone used Dawn dishwashing detergent with Peroxide? My sister just gave me that recipe for removing any stain and she says it works...she's a nurse so she may be right!! I know she has to get stains out of her clothing.

Any suggestions would be appreciated!!