DD has this, (well, as its the milder form nowadays its actually scarletina). Anything I need to know? GP thought we should keep dd2 off school too as she could be contagious while incubating it, does that sound sensible? (inset day today anyway, so not an issue until next week) . She had a slight sore throat yesterday morning but when I picked her up from school she was crying and hot, the rash has come up through the night and is spreading over her torso. How long does it last? Anyone had one child have it and the other not get it? (we all sleep piled in together though, so not great as far as passing on contagious diseases).