Many infants have symptoms that can be attributed to cow’s milk consumption. Cow’s milk protein allergy is often not considered as a diagnosis because there are no specific diagnostic markers. Patients can be divided into 2 groups according to the response to ingestion of cow’s milk: those that clearly present allergy to cow’s milk protein and those who have unclear symptoms of some organ systems. Those in the group with cow’s milk clear symptoms develop IgE-mediated reaction and they have early symptoms. But they are not the majority. In the absence of other specific methods for diagnostic challenge test is the certainty. Diagnosing a child with an allergy to cow’s milk protein is not always easy.
Milk allergy is an abnormal response by the body’s immune system to milk and products containing milk. An allergic reaction is developing in minutes to hours after consuming milk. Sign and symptoms are from mild to severe. Signs and symptoms include digestive problems, wheezing, vomiting, and hives. In some cases milk allergy can cause anaphylaxis – a severe clinic manifestation.