I'm sorry but I wouldn't think twice about washing it. I would wash it in warm or cold water on delicate. Throw in color catchers. Stop cycle and let it soak for awhile. I would re wash withRestoration if it still smelled. I once had a quilt top pieced and it was not basted. All the fabrics were pre-washed with Retayne in hot water. Anyways, our dog got fleas and, while I did not see any on the quilt top, he spent a lot of time in my sewing room. I ended up washing the quilt top in hot water and dried it on low. It turned out great after pressing. I was relieved.