Milk Allergy in Infantsenparents all infants are fussy at times. But some are very fussy because they have an allergy to the protein in cow's milk, which is the basis for most commercial baby formulas.milk allergy, formula protein allergy, formula protein intolerance, cow's milk protein allergy, allergic to formula, lactose intolerance, lactose intolerant, newborns, feeding, bottlefeed, bottle feed, breast feed, breastfeed, breast milk, nurse, hives, wheals, stools, skin test, allergic, allergic reaction, sensitivity, food allergy, diarrheas, gas, vomits, digests, proteins, caseins, amino acids, baby formulas, hypoallergenic formulas, soy, soy milk, colicky, colic, fussy, immune systems, allergies, anaphylaxis, swelling, triggers, dairy, dietitians, fda, homemade formulas, CD1Allergy, CD1Nutrition, CD1Allergy, CD1Nutrition, CD1Gastroenterology07/31/200010/08/201809/02/2019Michelle Clark, MD and Hillary B. Gordon, MD09/03/201861e0a090-3b09-4e26-a53e-a0dc3945e818<h3>What Is a Milk Allergy?</h3> <p><span style="font-size: 1em;">When a baby is allergic to milk, it means that his or her&nbsp;</span><a href="" style="font-size: 1em;">immune system</a><span style="font-size: 1em;">, which normally fights infections, overreacts to proteins in cow's milk. Every time the child has milk, the body thinks these proteins are harmful invaders and works hard to fight them. This causes an </span><strong style="font-size: 1em;">allergic reaction</strong><span style="font-size: 1em;"> in which the body releases chemicals like </span> histamine <span style="font-size: 1em;">.</span></p> <p>Cow's milk is in most baby formulas. Babies with a milk allergy often show their first symptoms days to weeks after they first get cow milk-based formula. <a href="">Breastfed</a> infants have a lower risk of having a milk allergy than formula-fed babies.</p> <p>People of any age can have a milk allergy, but it's more common in young children. Many kids outgrow it, but some don't.</p> <p>If your baby has a milk allergy, keep two <strong>epinephrine auto-injectors</strong> on hand in case of a <a href="">severe reaction</a> (called anaphylaxis). An epinephrine auto-injector is an easy-to-use prescription medicine that comes in a container about the size of a large pen. Your doctor will show you how to use it.</p> <h3>What Are the Signs &amp; Symptoms of a Milk Allergy?</h3> <p>In children who show symptoms shortly after they have milk, an allergic reaction can cause:</p> <ul> <li>wheezing</li> <li>trouble breathing</li> <li>coughing</li> <li>hoarseness</li> <li>throat tightness</li> <li>stomach upset</li> <li>vomiting</li> <li>diarrhea</li> <li>itchy, watery, or swollen eyes</li> <li><a href="">hives</a></li> <li>swelling</li> <li>a drop in blood pressure causing lightheadedness or loss of consciousness</li> </ul> <p>The severity of allergic reactions to milk can vary. The same child can react differently with each exposure. This means that even though one reaction was mild, the next could be more severe and even life-threatening.</p> <p>Children also can have:</p> <ul> <li>an <a href="">intolerance</a> to milk in which symptoms — such as loose stools, blood in the stool, refusal to eat, or irritability or colic — appear hours to days later</li> <li><a href="">lactose intolerance</a>, which is when the body has trouble digesting milk</li> </ul> <p>If you're not sure if your child has an intolerance versus an allergy, talk to your doctor.</p> <h3>If Your Child Has an Allergic Reaction</h3> <p>If your child has symptoms of an allergic reaction, follow the food allergy action plan your doctor gave you.</p> <p>If your child has symptoms of a serious reaction (like swelling of the mouth or throat or difficulty breathing, or symptoms involving two different parts of the body, like hives with vomiting):</p> <ul class="kh_longline_list"> <li><strong>Give the epinephrine auto-injector</strong> right away. Every second counts in an allergic reaction.</li> <li>Then,&nbsp;<strong>call 911</strong> or take your child to the <a href="">emergency room</a>. Your child needs to be under medical supervision because, even if the worst seems to have passed, a second wave of serious symptoms can happen.</li> </ul> <h3>How Is a Milk Allergy Diagnosed?</h3> <p>If you think your infant is allergic to milk, call your baby's doctor. He or she will ask you questions and talk to you about what's going on. After the doctor examines your baby, some <a href="">stool tests</a> and <a href="">blood tests</a> might be ordered. The doctor may refer you to <strong>an allergist </strong>(a doctor who specializes in treating allergies).</p> <p>The allergist might do <a href="">skin testing</a>. In skin testing, the doctor or nurse will place a tiny bit of milk protein on the skin, then make a small scratch on the skin. If your child reacts to the allergen, the skin will swell a little in that area like an insect bite.</p> <p>If the allergist finds that your baby is at risk for a serious allergic reaction, epinephrine auto-injectors will be prescribed.</p> <h3>Avoiding a Milk Allergy Reaction</h3> <h4>If You're Breastfeeding</h4> <p>If your breastfed infant has a milk allergy, talk to the allergist before changing your diet.</p> <h4>If You're Formula Feeding</h4> <p>If you're <a href="">formula feeding</a>, your doctor may advise you to switch to an <strong>extensively hydrolyzed formula&nbsp;</strong>or an <strong>amino acid-based formula</strong> in which the proteins are broken down into particles so that the formula is less likely to trigger an allergic reaction.</p> <p>You also might see &quot;partially hydrolyzed&quot; formulas, but these aren't truly hypoallergenic and can lead to a significant allergic reaction.</p> <p>If you're concerned about a milk allergy, it's always best to talk with your child's doctor and work together to choose a formula that's safe for your baby.</p> <p>Do not try to make your own formula. Commercial formulas are approved by the U.S. Food and Drug Administration (FDA) and created through a very specialized process that cannot be duplicated at home. Other types of milk that might be safe for an older child with a <a href="">milk allergy</a>&nbsp;are <strong>not</strong> safe for infants.</p> <p>If you have any questions or concerns, talk with your child's doctor.</p>Alergia a la leche en bebésLa alergia a la leche la pueden padecer personas de todas la edades; de todos modos, se trata de un tipo de alergia que abunda más en los lactantes (la padecen entre el 2% y el 3%), aunque la mayoría de ellos la supera con la edad.
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