Candy, here's something to try. Visualize your black goo, and see it slowly retract back into a ball, allowing you to breathe freely. Now work on making that ball shrink smaller and smaller, as small as you can get it, and then finally so small that, poof, it's gone. You may need to repeat the visualization, but if you practice it I bet that it will last longer each time. You could also take a bubble bath or do something to wash away any black goo that remains. Eating good, healthy food will help to cleanse it from the inside of you. Don't forget to drink enough water, even though it's cold. That will help wash away the black goo also, and we tend to forget about drinking water in the winter.

Take good care of you,
Rap