To stay off work as baby got chicken pox

Yes a bit I think. Is she particularly unwell.
In what way are you staying off work? I am lucky enough to be able to take annual leave at very short notice.

If there is someone to care for her then yes YABU really.

Yabu if your mum is happy to look after her. My workplace is very flexible and accommodating to childcare issues but would raise eyebrows at this.

Even though you want to be there, it is a bit unreasonable and putting stress on your work places uneccessary.

Is she ill with it or just spotty?

You can’t work from home properly whilst caring for a poorly baby.

I’d have a day or so with her if really poorly, but not if she wasn’t bothered by it.

Depends if you'd still expect to be paid abc if you'd be letting people down or adding to their workload. If your answer is yes to any of those, then yes, YABU.

So stay off work or work from home? Big difference?

And does your workplace allow you to work from home whilst looking after a child?

It is Friday now, if you can WFH I assume you have a Monday to Friday job. By Monday baby could be much better. Baby had CP before the spots came out so the reason to WFH is getting weaker by the day.

That said, WFH seems reasonable to me.

Ask to work from home and have your mum there to do the actual nappy changes, food, milk etc. You could just do the nice cuddles and get on with your work?

Sounds reasonable. Stay home.

Depends on how I'll your dd is really. If just a bit itchy and spotty then you should probably go in I think. But if she's very unwell I would stay home. My ds had absolutely shocking chickenpox and I couldn't and didn't leave him. Somethings are more important than work imo.

My 9 month old had it, was fine day one or two by day three all of a sudden she went floppy, temp absolute soared.. Had secondary infection it was terrifying. So you can't really judge how she coped until its over.

You can't be productively working from home and look after a baby, especially if unwell. Could your dm not come to your house?

Take holiday or unpaid parental leave from work.
Easy if you want to.