Both of my nieces were allergic to milk. The youngest one much more than the other. My sister's youngest will break out in hives if she so much as touches my son's bottles (milk based formula). She seems to be outgrowing it though. She just turned 1 year old on Thanksgiving and she was given something that had whey protein in it on accident and was fine. She also got a hold of my son's bottle (she steals bottles lol) and didn't break out then. I think it is possible to outgrow it but that's pretty unlikely. Also, I don't know how old your baby is but I know those allergy tests are not very acurate unless you do them when the child is at least 16 months old. So they could be wrong.......
at 8:39 PM on Dec. 4, 2008