There’s a good chance that a child with cow’s milk allergy will be able to enjoy a drink of milk again one day. Only some remain hypersensitive into childhood and adolescence, depending on the individual and the food they are allergic to.
Ask your child’s doctor for regular check-ups to find out if your child is still allergic. You should wait until your child is 12 months old and its last bout of allergy should have happened no less than 6 to 12 months earlier. Then your child’s doctor will determine how long your child may need a cow’s milk free diet.
Caffarelliet al. Italian Journal of Pediatrics 2010, 36:5
Skripaket al. J Allergy clinimmunolvolume 120, number 5