I am 15 years old, female, and I woke up with a rash on my chin, cheeks (more on one side), and a bit of my neck. It seemed to spread a bit through the day (could be caused by me frequently touching it, being anxious and checking if its diminishing or not). It may be caused by some new synthetic fur pillows that I bought and slept with, but why would it be just on my chin? What can I do to make it disapear?