Cow Milk Protein Allergy Management in Neonates

Clinical Presentation and Diagnosis

Dermatological manifestations of cow milk protein allergy in infants include atopic dermatitis and eczema, particularly in those with early-onset severe eczema 1

The American Academy of Pediatrics recommends that breastfeeding should continue with strict maternal elimination of all cow milk and dairy products from the mother's diet, as this effectively manages symptoms in most cases 2, 3
The first-line treatment for formula-fed infants is extensively hydrolyzed formula (eHF) of cow milk protein, which has an 80-90% success rate 2
Soy formula is not recommended as first-line due to a 20-40% cross-reactivity risk, but can be considered for infants >6 months after establishing tolerance by clinical challenge 2
Goat's milk and sheep's milk are not suitable alternatives due to high protein homology with cow's milk 3

Oral food challenge should be performed at 9-12 months of age in a hospital setting to assess tolerance development, with reintroduction attempted under medical supervision typically after 6-12 months of elimination 2, 3

Do not discontinue breastfeeding prematurely when maternal elimination diet can effectively manage symptoms 3
Do not use soy formula as first-line alternative in infants under 6 months 2
Do not perform unnecessary maternal dietary restrictions beyond confirmed allergens, as this compromises maternal nutrition 2, 3
Children with cow milk or soy-induced FPIES have a 30% likelihood of reacting to solid foods, most commonly rice or oat 2