How long will a milk allergy last in a baby and will it go away?

Varies: True ige mediated allergy usually goes away. How long it lasts depends on each individual. See an allergist who will help evaluate your child.

Unpredictable: Most infants outgrow milk protein allergy by the age of 2 years--more importantly, about 80% of children will outgrow allergy to milk by the age of 5. See an allergist for appropriate testing and recommendations on when to reintroduce milk into your child's diet.