Children with milk protein allergy can also be mixed fed. If the child develops a milk protein allergy while breastfeeding, the mother should avoid all milk and milk products while the child is breastfeeding. If breast milk is not enough, a mixture of deeply hydrolyzed or amino acid formula can be given with breast milk. If the baby is over 6 months old, egg yolk, rice flour, noodles, potatoes, fruit puree, meat, etc. can be added gradually. Breast milk can be mixed with complementary foods.