Help me out here: do we all need to stay off work/school?

[unlimiteddilutingjuice]

Stupid question, but I'm finding the guidelines confusing.
Our poorliness status is as follows:
DH: Temperature, cough, general man flu type thing.
Me: Mild temperature. Feeling a bit "meh"
DS: cough, mild tempreture
DD: Had a cough last week. Fine now. But breathing in our feotid sick room aid obviously.
Are we all at home next week?
DH called 111 two days ago and was told it couldn't possibly be Covid19 (as hasn't been abroad) and just carry on as usual.
Then all the guidelines suddenly changed.

Stay at home for 7 days or until symptoms gone.

Well, two of you have both symptoms, you have one symptom, DD it may already have passed. But yes, obv the three of you with cough/temperature need to self isolate.

Yes you need to stay off. You have a cough and/or temperature. It's quite clear isn't it?

Keep everyone at home.

Thanks, that's what I thought.
Would you keep DD off as well?
She's had something but is over it now.

Yes keep DD off too

As it stands, no reason to isolate your DD according to official advice. As long as 7 days have passed since she first became ill