How would you wash this?
I'm in the midst of hand quilting a queen size quilt. Part of it brushed against the fireplace hearth and got a smudge on it. I wiped it off the best I could with a damp washcloth, but there is still a faint dark stain there. Now what? I don't typically launder my hand quilted quilts, as I think the stitching is more vulnerable than machine quilting. So I would rather not have to wash the whole thing, but am not sure how to get the stain out without leaving a watermark or having issues with getting soap out of it. Any ideas?