Hi Just Wondering My 5 Yr Old Contracted Chicken Pox

Hi just wondering my 5 yr old contracted chicken pox last thursday. No symptoms just came home from school with few spots which have now mutiplied. She is not sick and eating well. Spots are blistering somewhat but not bad. I am wondering when is the earliest she can return to school once she is feeling up to it.Also i have never had them and i also have three other children are we likely to get them? Thank you.