Case: YOU will definitely see "skin" stuff in clinics and the USMLE. So, let's say you see a one year old male with fever and chills and a RASH. He was OK until an ABRUPT onset of the fever lead straight into a fine erythematous maculopapular eruption rash that started on this stomach and waist and spread all over his body. His nose is runny. (His fever suddenly dropped as the rash started). Picture is given...and the dx starts with letter "R".
A) This is Roseola infection, a HHV 6 infection (herpes virus).