unexplained rash or bites

[hj1981]

So a few days ago DD1 had a few spots on her, thought nothing of it but it gradually got worse.

They kinda look like raised bites, sort of like the mark you get when a green ant bites you.

She itches, but not constantly, they come in patches on her body, more so on her torso then anywhere else.

She isn't sick, no temp, they don't bother her unless she is itching.

I have given her polaramine, bathed her in pinetarsol, and have covered her in calomine lotion.

When she wakes up in the morning they can be pretty much gone, but by the end of the day they are well and truely back.

Any ideas of what this could be?

[hj1981]

i haven't changed washing powder and she hasn't eaten anything different