Cows milk protein allergy is a disorder that occurs when the immune system of the body mistakes the cow milk protein as harmful and creates antibodies to protect the body. The allergy is one of the most common allergies with children. Symptoms are cramps, vomiting, diarrhea, and shortness of breath or skin issues. The only treatment is to eliminate all foods with cow milk protein out of the diet and replace them by dairy free products. Consult your doctor or dietician, if you think you or your child might be allergic to cow milk protein.