Pityriasis rosea

A 20-year-old man presents to the office for the evaluation of a skin rash. He reports that initially, there was a singular pruritic, salmon-colored patch that appeared on his back ten days ago. After two days, the patch slowly began to clear centrally. Approximately four days after the appearance of the initial rash, multiple similar but smaller lesions started to appear on his back and chest. Review of systems is significant for malaise and headache. Past medical history is significant for a recent cold that resolved spontaneously two weeks ago. Temperature is 37.0°C (98.6°F), pulse is 80/min, respirations are 17/min, and blood pressure is 125/80 mmHg. Physical examination findings are shown.


Reproduced from Wikimedia Commons

Which of the following best describes the progression of this patient’s skin rashes in the next several weeks?