If you are a posh person it's very likely that you have some furniture covered in silk. I have an old antique chair I found at an estate sale with silk upholstery that I just adore but I got a stain on it which broke my heart. I figured it was ruined forever.
However, I found this great silk upholstery cleaning austin way, when I lived there and first bought the chair, who was able to extract the stain at a very reasonable cost.
Don't attempt to clean silk upholstery on your own, you will most definitely ruin it. Hire a professional for this job.