Doctor
While waiting for the doctor to step out in the hallway and see them for their test, they were all very worried. Mariah was there with her parents who were patiently waiting to see the doctor, so he could run some tests and get to the bottom of all of this.
When they finally saw the doctor, he did his tests and in the end, he couldn’t come up with an answer as to what was wrong with their daughter. There was nothing wrong with her health, everything was in order and running perfectly, so that didn’t explain the white patch of skin.