Chickenpox 11 year old

[Hello08]

Hello, my daughter has just come out with chickenpox. I thought she’d become immune to it as she’s been around children who have had chicken pox when she was younger but never caught it.
She’s been well in herself. apart from the blisters and spots she’s been eating well, drinking, playing etc but I’m a little worried as I’ve always thought it was worse in older children. I’ve even heard it’s dangerous! Should I be worried?
The first spot came out on Thursday but we only realised it was chickenpox on Saturday.
Thank you

[dementedpixie]

It's can be worse in adults, I suppose she still counts as a child.