My little angel will be 1 in 7 days and for the past 3 days she has been getting a hive like rash all over her head and torso every time she nurses. It fades within an hour of nursing. We have not had anything new to eat or drink in at least two weeks. We are starting to wean and we're currently down to 2 - 3 times a day. Any ideas what could be causing this? Should we get a little more intense on weaning and start introducing cows milk?