I also have this, but it started on the tops of my feet. if i don't itch them for awhile, they shrink into tiny red bumps resembling poison ivey/poison oak. but when i itch them (it's impossible not to), they look exactly like mosquito bites. it's unbearable. then, today, i noticed my boyfriend itching his arm constantly. he took his shirt off, and on his right side, big mosquito bite-looking bumps, also on the backs of both elbows, and from the top of his left shoulder down to his wrist. they resemble bug bites, only his are a pinkish red color. i dont know if i should take him to the E.R, or if i'm over- worrying, but it's spreading fast. we've tried oatmeal bath, benadryl itch cream, caladryl, washing the sheets/blankets... i dont know what to do. they're now on the back of his neck. Does anyone have any idea of what the h this is?