Try to do a search for "grey spots after spraying with Lysol". I did this and came up with a couple things you might try. One mentioned rubbing the spots with mayonnaise. Another mentioned starting with a hair dryer to warm the surface and then doing other things to remove the spots. I tried to post these to my reply but my computer skills are limited. The last one was under refinishwizard.com. It mentioned the hair dryer followed by denatured alcohol. Hope this gives you some ideas.