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Some babies are allergic to this protein. </p> <p fingerprint="54aaccaa" fingerprint-exact="02ff10f5">Signs of cow's milk protein allergy include: </p> <ul fingerprint="ba12a0c6" fingerprint-exact="37b69537"> <li> <a class="HwLinkDefinition" data-hw-type="Definition" data-hw-document-href="sth149889" data-hw-section="sth149889-sec" rel="Definition" hw:document-type="Definition" hw:document-href="sth149889" data-hwid="sth149889" hw:section-href="sth149889-sec" href="?id=sth149889#sth149889-sec"><span class="HwLinkText">Hives</span></a>. </li> <li>Swelling of the face, tongue, mouth, or throat. </li> <li> Difficulty breathing, wheezing, or asthma. </li> <li>Abdominal (belly) pain. </li> <li>Vomiting. </li> <li>Diarrhea. </li> <li>Blood in the stools.</li> </ul> <p fingerprint="83cafeb3" fingerprint-exact="c7f43fe2">A formula-fed baby with a cow's milk protein allergy usually will be switched to a different kind of formula.</p> <p fingerprint="b2d4d5ec" fingerprint-exact="4c610c66">If your baby has signs of a milk protein allergy, contact your baby's doctor.</p> </div><div class="HwNavigationSection HwSectionRelatedInformation" id="sec-aa106616-RelInfo"><h2 class="HwSectionTitle" fingerprint="d5f858e0" fingerprint-exact="c0ffe04b">Related Information</h2><ul fingerprint="574ec440" fingerprint-exact="934fd318"><li class="HwOptionalAny"><a data-hw-type="Focus" data-hw-document-href="hw148684" data-hw-section="hw148684-sec" hw:document-type="Focus" hw:document-href="hw148684" data-hwid="hw148684" hw:section-href="hw148684-sec" href="?id=hw148684#hw148684-sec">Infant Formulas</a></li><li class="HwOptionalAny"><a data-hw-type="Mini" data-hw-document-href="hw177971" data-hw-section="acm8631" hw:document-type="Mini" hw:document-href="hw177971" data-hwid="hw177971" hw:section-href="acm8631" href="?id=hw177971#acm8631">Lactose Intolerance</a></li></ul></div><div class="HwNavigationSection HwCreditsSection HwCreditsWithoutNavstack HwSectionCredits" 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