First time mum so not sure! Appeared very quickly yesterday evening as tiny (not red) pearly spots. Some seem to have popped over night and got a bit redder. They are all on forehead or in hair at the moment (about 10 of them) but seem a bit small from what I remember of chicken pox when I had it many years ago.
Ds is 16mo and has been a bit grumpy for the last couple of days but no temp and eating/drinking ok. Have molars coming through so had put it down to that.