If symptoms persist beyond feeding, positioning and parental education then a CMPA allergy needs to be considered - how is this diagnosed?   - Paediatrics

Consider a cows’ milk protein allergy, because 92% of infants with CMPA suffer from 2 symptoms or more.^32,33 These symptoms include:

Dermatological, up to 90% of CMPA infants will have atopic dermatitis, eczema, urticaria and rashes
Respiratory, up to 30% of CMPA infants will have wheezing, chronic coughing, respiratory distress and runny nose
Gastrointestinal, up to 60% of CMPA infants will have diarrhea, constipation, vomiting, frequent regurgitation and blood or mucous in the stools