I discovered a greasy stain on my counter top, so I did what I've done a few times before: made a paste with baking soda and water. I put it on and left it 24 hours. When I removed the paste, the stain was 10 times bigger. It seems that the baking soda paste stained the counter. Now I have a 6 in. stain in the middle of my counter! What do I do?