I found a chunk of gum stuck to our hall shag carpet. It had been there for several months, dried but thoroughly stuck to the fibers. I dabbed Thieves Household Cleaner on a cotton ball, then rubbed it on the gum and let it sit for a minute. The gum literally just lifted off the carpet. You can rub your fingers across the treated spot. There is no way to tell there ever was any gum there!