Hi ..thanks for your query.
You have not mentioned the age of your daughter. There can be many possibilities .
It can be a scabies infestation. This is common in children.itching is mostly severe in the night.topical permethrin is used in the treatment.
Next common possibilty is papular urticaria
. This is a allergic reaction
to insect bites
like mosquitoes. Topical sterois are used fir the treatment.
Other contact allergies or acute urticaria is also possible.
I suggest you visit a dermatologist
to get a proper diagnosis and then start the definitive therapy.
Hope this helps. Take care!