How best to diagnose milk allergy? Skin test or blood test?

Probably skin. If someone is allergic to some allergen, like milk, a skin test can be done to see if there is reaction to it. Swelling and redness of the site can tell how severe it is. Clinical labs may be able to test reactions serologically, so blood might be taken also for this.
Milk allergy. Milk protein allergy is a recognized problem in the first year of life; cow’s milk protein allergy is the most common such allergy. Diagnosis is suspected on history alone, with laboratory evaluations playing a supporting role. Confirmation requires elimination and reintroduction of the suspected allergen. Management includes diet modification for nursing mothers and hydrolyzed formulas.

Related Questions

I had a blood test for allergies. They came back positive for milk casein then had a skin test that was negative. I'm confused. What do I believe?

Both may be true. The antigens used in skin testing may not include milk proteins, but milk is usually included in blood testing for allergy. Skin testing and blood testing for allergy may agree but the immune system can make several different kinds of hypersensitivity reactions. If one test says you are allergic to milk i would tell you to avoid milk, yogurt, ice cream, cream and some cheeses. Read more...
Clinical History. Skin testing and / or blood testing for food allergies must be interpreted in light of one's clinical history. If there is no history of reacting to the food in question then there may be very little value in performing any type of allergy test. If there is a history of reacting to a food allergen then the skin and / or blood test can provide valuable data. Follow up with your allergist. Read more...
Symptoms? Allergists must weigh the results of both skin and blood tests against your own experience with milk casein. This is why the specialty is so challenging. Life is difficult enough without avoiding something that doesn't actually make you sick just on the basis of tests that have many false-positives. Read more...
Blood test. I would trust the blood test over the commercially available milk skin test extract. A skin test with real organic milk straight outof the bottle may be helpful. Read more...

Skin test for food allergies had a +2 reaction to milk and +to soy blood test came back negative still have issues w/milk what do I do?

Food sensitivities. Blood tests are often inaccurate with regards to allergies, intolerances, and sensitivities. The best way to confirm a problem with these foods is to do a 4 week elimination diet. So do not eat dairy or soy products of any kind for 1 month and see how you feels. Read more...
FOOD ALLERGIES. The skin test is much more sensitive than the blood test . You should eliminate milk and soy. Also try to stay gluten free. Wholeapproach.com. And gutbliss diet.com. Rember allergies develop over time and exposure. So keep a food diary and make sure to rotate food daily. If symptoms persist see an allergist for serum to start immunotherapy. Read more...
Milk allergies? The vast majority of adults who can't tolerate milk are actually suffering from lactose intolerance, not an effect of an actual allergy, even if skin testing came back positive. I would recommend either avoiding milk or trying lactose-free milk products. There are even lactase supplements which can allow someone to tolerate milk. If questions, see your doctor or a GI doctor. Good luck. . Read more...
Avoid it! Allergy tests can be very useful but are not without a margin of error. Listen to your body, if a particular food does not agree with you, avoid it and find other foods that will provide the nutrients you are missing. The tricky thing with eliminating milk is making sure you are getting enough Vitamin D. Calcium and protein are other considerations in planning your diet. Best wishes! Read more...

I heard blood test is often inaccurate to find allergy. My blood test shows milk allergy but how can I know if it is correct or not?

History is more.. Important, if you're not allergic to milk when you drink it, it means you aren't, allergy blood tests are good negative tests, i.e can rule out , not prove that you are allergic to a certain element, especially foods, and history is more reliable. Read more...

Is there a blood test to check for lactose and milk allergy?

More info/mgt. Milk allergy and lactose intolerance are two different conditions. For milk allergy testing a specific IgE blood test may be ordered If you have GI upset with milk based products including milk chocolate, try avoiding these foods, using a milk substitute such as almond milk and taking lactaid. At your age, lactose intolerance is more likely. Read more...

My blood test said I have a milk allergy (moderate), but I still drink milk. Could the blood tests have been wrong? Could it weaken my immune system?

Irrelevant test . Unfortunately, food allergy testing by skin test or blood test is not very predictive. A negative skin test is very good about saying a person is not allergic, but positive blood and skin tests are very common and are clinically relevant less than 50% of the time. The real milk test is what happens when you drink it----nothing. This is a problem with the test and not your immune system. Read more...

What's more reliable for determining allergies: skin test or blood test?

Gold standard. This skin test remains the gold standard but these days the blood test has become just about as good. In either case the allergens ordered should be guided by your history and exposures. Read more...

Is an IGE allergy blood test as accurate as a skin test? My skin test from 1 year prior to IGE blood test showed additional allergens.

Likely complementary. Although prick skin test is considered better in detecting food allergies the results of blood tests are complementary. I often order the blood test first in a case of a food suspected of causing anaphylaxis. If the result is negative or equivocal, then I would proceed with a skin test prior to a food challenge. The results are at times discrepant. Read more...

I am taking 3 different meds for allergies and zoloft (sertraline). I had a blood test and skin test without stopping them. Did that negate the tests?

Maybe. If you had a positive response to the allergy test, it is probably valid. However, the medications could have interfered with the test to give you a negative result when you are really allergic to something. There are different types of response to an allergen that is often cell-mediated but the process is rather complicated. There have been reported interference due to use of medications. Read more...

If I have a positive Quest Diagnostics blood test for a food allergy, could a skin test give a stronger confirmation? So many positives for foods!

Blood tests. for food allergies are somewhat unreliable - as there are many problems with cross reactivities on the assays. Unless you have had a particular event like you were unable to breathe or throat swelling after eating a particular food and are sure there was nothing else causing it- then these results may not be clinically important. Pollen/ and environmental allergy testing is much more reliable. Read more...