The kids have both had/are having chicken pox this fortnight.
He's never had it.
He's been feeling off for a few days, had one pox-like spot, but nothing else.
Now he is covered all over his back and chest with a weird rash - it looks like a pressure mark from when you have been leaning on a bobbly blanket/german measles?!?! He has had german measles.
It doesn't look like pox unless it is the very start and they haven't raised yet.
I'm worried
He's tired, and has been off colour for a few days.