Has anyone had a clogged or plugged duct lasting longer than twelve hours? I've tried heat, constantly nursing, pumping, massaging in the shower. The only thing I haven't tried yet is ice. I'm currently waiting for the lansinoh pearl 3 in 1 to freeze. Anyone have any other suggestion? At what point does it become mastitis? I feel I may never be able to lift my left arm pain free again. 😢