Explore the latest updates in allergy management with an interactive case scenario. Cow's milk protein allergy (CMPA) affects approximately 3-5% of infants and is divided into IgE and non-IgE mediated types, which should be differentiated from lactose intolerance. Diagnostic elimination of cow's milk protein (CMP) is recommended for 2-4 weeks to address symptoms such as chronic diarrhea and growth faltering. For breastfed infants, eliminating CMP from the mother's diet or switching to a non-CMP formula typically resolves symptoms. However, eliminating dairy products poses a risk for nutritional deficiencies. Gain valuable insights into effective allergy management strategies and practical solutions for preventing nutritional deficiencies during CMP elimination.