Many rashes and skin lesions can be found first in the newborn period. For each of the descriptions listed below, select the most likely diagnosis. Each lettered option may be used once, more than once, or not at all. An adolescent boy complains of a splotchy red rash on the nape of his neck, discovered when he had his head shaved for football season.The rash seems to become more prominent with exercise or emotion. His mother notes that he has had the rash since infancy, but that it became invisible as hair grew. He had a similar rash on his eyelids that resolved in the newborn period.