Mozzie Bites ?

[Beach Mama]

Poor darling, hope she's feeling better soon hun. Maybe it will just take a few days to go down xoxoxox

[Rivlas]

They can take at least 24 hours to reduce. DD2 as a youngster used to really react and sometimes it was a few days before they became tiny. Bandaids over a bit helps stop the scratching.
Is it itchy, if not then it might be another type of bite.

Hope it goes down soon