C.H.
K.,
hi. this may not be the same thing, but when my oldest(who is 28 now!) was in fifth grade, 2 other classmates, and a brother of one of the classmates came down with something that sounded really similiar to what you described. the one parent took her 2 boys to a dermotologist. he took biopsies(SP??)(yuck!) and it came back "staph" infection! i had never heard of such a thing!!! those 2 boys and the one other boy were put on antibiotics i think. i put antibiotic ointment on my son and all cleared up.
good luck with all, and take care.
C.