She's ...
swollen
His nose is ...
bleeding
What has he got?
sunburn
What's this?
Band aid or plaster
What has he got?
Sore throat
What's happened?
He's got food poisoning.
What are stitches?
...
He feels like...
vomiting / throwing up (OR He's going to get sick)
What has she got?
rash
He feels...
dizzy
What's happening?
It's choking.
Why is she taking her shoe off?
She's got a blister.
What's haapened?
She's fainted / passed out.
He's...
unconscious