skin reactions to breastmilk??

[Lut]

There is only 8 days between Milo and DS and we have the EXACT same problem. Maybe it's the reaction they develop at around this age for some reason????
He only has breastmilk also.He always had such clear skin. But probably over the last month or so, he seems to get very rough, red and sometimes cracked cheeks (and under his chin when the milk runs down when he brings it up).
DH and i have been wondering the same thing. It MUST be the breastmilk. i've tried cutting things like eggs out of my diet, but i'm not sure it's made any difference. i think it's the contact, rather than the ingestion of the milk.
Oh what to do?!?!