Star, I've just a done search for uticaria, (and found this thread) My two year old was covered in them (just like nettle rash) all over his feet and legs - he had a really bad cold, so took him to the Dr on Boxing Day, he said it was an allergic reaction to his virus.
He has had it badly on two occassions since, both when we have been outside, so Debsters message makes sense.
This morning though his whole front body and face looks awful, and is really itchy. Going to Drs later.
Did your daughter just stop getting it? Has she had it since? Did you find out anymore information it?
Thanks!