Question: how to know if your baby is allergic to your milk?
Answer: A lot of spitting up.
Vomiting.
Signs of abdominal pain (crying and grunting)
Slimy diarrhea or blood in stools.
Hives.
Eczema (itchy red rash inside knees, elbows, neck) Scaly skin rash.
Coughing or wheezing.
Watery eyes, runny nose or stuffy nose.