I know it's okay to introduce cow's milk at 12 months, however, my son has a pretty bad milk allergy. Oddly enough, it is not a digestive
allergy, it is a contact allergy. Anywhere milk
or a milk
product (whey, casein, lactase...all that "milk" stuff) touches his skin, he breaks out in a hot red rash and hives. He can digest it normally as far as I can tell, but with any food with a milk ingredient that touches him, he breaks out.