I had an area rug on my living room floor for about a year, and when I went to clean under it the other day, I noticed that the rug, which is yellow, had left a huge yellow stain on the carpet below. It must be that the ink used to dye the area rug, had rubbed off onto the carpet. I tried vacuuming and that didn’t work. I then tried steam cleaning the carpet with regular carpet cleaner, and that didn’t work either. Does anyone know of any product or method that will remove this stain? It is huge – the entire area of the rug.