Cow's Milk Protein Intolerance

A small number of babies have reactions to a protein found in cow's milk. Signs of cow's milk protein intolerance include:

• Reference Hives Opens New Window.
• Swelling of the face, tongue, mouth, or throat.
• Difficulty breathing, wheezing, or Reference asthma Opens New Window.
• Abdominal pain, vomiting, and diarrhea.

Most infant formulas contain cow's milk protein. If your baby has symptoms of a cow's milk protein intolerance, talk to your doctor. He or she may recommend trying a soy-based or hypoallergenic formula.

Some babies who have cow's milk protein intolerance are also sensitive to soy. But soy formulas are often tried before hypoallergenic formulas, because they cost less. If your baby continues to have symptoms after switching to a soy-based formula, he or she may need the more expensive hypoallergenic formula.

It is important to talk with your doctor continuously throughout this process of trying formulas and monitoring your baby for symptoms.

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