DD had something similar last year but was also on torso and foot. I was told by the GP it was an allergic reaction to something but I continue to remain dubious. We gave her 5ml of phenergan which helped her.

To me, it doesn't present like a bite at all. Is it possible she has come into contact with a plant or other object she might be reacting to?

FTR, DD's came out mid morning then went and came out again a few hours later. This happened 3 times in 24 hours and hasn't happened again. We changed nothing.

MG