Chicken pox exposure in a sibling

[Daveface]

My 3 year old just had chicken pox, she is over it, all recovered and out of "quarantine"

But so far my 1 year old doesn't have spots! NHS website says incubation period is 10-21 days!

So am I meant to avoid baby groups until this 21 day period is over??? So to ensure the little one isn't harbouring the pox and spreading it?

no, you continue as normal until they show signs of chicken pox. They may not even get it. It was about 15 days between my dd having it and ds coming out in spots.