Hi, my son is 15 months old and for the last few days, he's been getting red blotches randomly on different parts of his body, but most frequently his face and they will look like a mosquito bite. He goes to daycare and he recently had a change in teachers, from what I understand they aren't giving him anything different to eat and nothing has changed at home. I have an appointment with his pediatrician, but I'm really worried because I don't know what this is. He doesn't seem to notice it or even be bothered by it.