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Milk Allergy

About Milk Allergy
Allergy to milk is sometimes confused with lactose intolerance, because both can cause problems after drinking milk — but they are very different and unrelated.
Lactose intolerance is annoying and can cause discomfort, but it is not life threatening. Milk allergy, though, can cause someone to become suddenly and severely ill, and can be life threatening. That’s why milk and other dairy products must be completely avoided if your child has a milk allergy.
Milk allergy is the most common food allergy in young kids, affecting about 2%–3% of those younger than 3 years old. Many kids outgrow it, but some remain allergic for a lifetime.
A milk allergy can cause a range of symptoms, from mild to severe. If your child has been diagnosed with a milk allergy, keep two epinephrine auto-injectors available in case of a severe reaction. An epinephrine auto-injector is a prescription medicine that comes in an easy-to-carry container about the size of a large marker. It’s simple to use. Your doctor will show you how to use it. Kids who are old enough can be taught how to give themselves the injection.
The doctor can also give you an allergy action plan, which helps you prepare for, recognize, and treat an allergic reaction. Communicate emergency plans with anyone who will be taking care of your child, including relatives and school officials. Also consider having your child wear a medical alert bracelet.
What Happens in a Milk Allergy
When someone is allergic to milk, the body’s immune system, which normally fights infections, overreacts to proteins in the milk. Every time the person drinks or eats milk or other dairy products, the body thinks these proteins are harmful invaders.
The immune system responds by working very hard to fight off the invader. This causes an allergic reaction, which releases chemicals like histamine in the body. The release of these chemicals can cause someone to have symptoms like:
• wheezing
• trouble breathing
• coughing
• hoarseness
• throat tightness
• stomachache
• vomiting
• diarrhea
• itchy, watery, or swollen eyes
• hives
• red spots
• swelling
• a drop in blood pressure, causing lightheadedness or loss of consciousness
Allergic reactions to milk can vary. Sometimes the same person can react differently at different times. Some reactions to milk are mild and involve only one system of the body, like hives on the skin. But, even when someone has had only a mild reaction in the past, the next reaction can be severe.

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Anaphylaxis Is a Life-Threatening Reaction
Milk allergies can cause a severe reaction called anaphylaxis. Anaphylaxis can begin with some of the same symptoms as a less severe reaction, but then can quickly get worse. The person may have trouble breathing or pass out. More than one part of the body might be involved. If it isn’t treated, anaphylaxis can be life threatening.
Every second counts in an allergic reaction. If your child starts having serious allergic symptoms, like swelling of the mouth or throat or difficulty breathing, give the epinephrine auto-injector right away. Also give the epinephrine auto-injector right away if your child’s symptoms involve two different parts of the body, like hives with vomiting. Then call 911 or take your child to the emergency room. 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.
Keep Allergy Medications Handy
Notify your child’s school if your child has a severe milk allergy. You should agree upon a plan in case of a serious reaction and two epinephrine auto-injectors must be available at all times. If your child is old enough to carry the epinephrine, it should not be in a locker, but in a purse or backpack that’s with your child at all times.
Your child’s allergy plan also could include giving an over-the-counter antihistamine for milder allergy symptoms. But the antihistamine should be given after the epinephrine in the case of a serious, life-threatening reaction.
Milk Allergy Safety Tips
To prevent allergic reactions to milk, your child must avoid any foods that contain milk, milk products, or milk proteins. Read food labels to see if a food contains milk.
Milk may be found in unexpected places, such as processed meats, canned tuna, and baked goods, so it’s important to read labels on all foods, even ones that are not dairy foods. Words like casein, whey, and lacto- mean the product contains milk. For detailed information about foods to avoid, visit Food Allergy Research & Education (FARE).
Even if a food is labeled “milk-free” or “nondairy,” it could still contain allergy-causing milk proteins. Manufacturers of foods sold in the United States must state in understandable language whether foods contain any of the top eight most common allergens, including milk. The label should list “milk” in the ingredient list or say “Contains milk” after the list.
Some foods look OK from the ingredient list, but while being made they can come in contact with a food your child is allergic to. This is called cross-contamination. Look for advisory statements such as “May contain milk,” “Processed in a facility that also processes milk,” or “Manufactured on equipment also used for milk.” These are cross-contamination warnings, but manufacturers are not required to list them.
Since products without precautionary statements also might be cross-contaminated and the company simply chose not to label for it, it is always best to contact the company to see if the product could contain milk. You might be able to get this information from the company’s website or by emailing a company representative.
Food makers sometimes change ingredients, so ingredients in a new package may be different from ingredients in an older package. So, labels should be checked every time.

Milk Alternatives
Milk from other animals (such as sheep, goats, and buffalo) are not good alternatives for those with cow milk allergy because the proteins are similar. Sometimes, people with an allergy to cow’s milk are also allergic to soy milk.
But many other milk-free alternatives are available, including ones that are fortified with calcium and vitamin D. The allergist can tell you which milk substitute is best for your child. Some options are:
• rice milk
• almond milk
• coconut milk
• oat milk
• hemp milk

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