I have a sweater that i just love. But I have only been able to wear it once. Why? A mystery sticky spot that won't come off!! it is a cream colored sweater (100% acrylic). The sticky stuff hasn't come off with hot water, cold water, a variety of spot treatments or laundry soaps and detergents. It is soft, sort of like honey or sap in appearance (no clue what i got into). It acts though like the adhesive from tape. Whatever this stuff is, I haven't gotten it out and i don't want to toss this sweater. I have had it only since last christmas, and like i said, i haven't gotten to wear it but once because of this...any suggestions?