My 7 month old baby is exclusively breast fed, I eat plenty of dairy in my diet and he has never shown any signs of gastro issues but he has had a persistent rash on his chin and upper chest since he was about 3 months. I gave him Greek yoghurt to try as he is now on solids and he straight away broke out in a bumpy red itchy rash down his chin with a few raised spots around his mouth. He was quite lethargic and very irritated by the rash. All calmed down within about 15 mins but it leads me to question if he could have a skin allergy on contract with cows milk? Is there such a thing? If so then maybe that is the reason for the rash on his face - from the cows milk protein that would be in my own breastmilk? Not sure and would love some advice, thanks in advance