Oldest DD just getting over chicken pox, youngest (18mo) showing no signs. As oldest back at sch tomorrow, I'm back to work so youngest also back to nursery. It is very likely she will develop chicken pox (DH says possibly apparently up to 20 days later) Presumably at the moment then she is infectious to others? (obviuosly only if she goes on to develop it, which, although likely, is not a given!). I feel bad sending her in to nursery but cannot take more time off work when I do not have currently sick children! Thoughts?