I would suggest Julia use her medallion to cause the next dreamer of the curse to forget what ever the dreamer tells them, this way the dreamer is rid of the dream and the curse is cut off at the pass...
As someone else mentioned above, Julia tried that with Willie. She hypnotized him and assumed it would work, but he awoke exactly as he was before. The spell of the dream was just too strong for that.
I think the same thing would apply to the earplugs suggestion. Telling the dream to anyone but the beckoner did not ease the person's anxiety. I suspect that if the person was unable to hear and comprehend, that it would be the same as telling someone else and one would still have to tell it again.
