Level 1: What are the symptoms of milk allergy in babies? Milk allergy refers to the body\’s allergic reaction to milk protein, which is more common in infants and young children. Symptoms of milk allergy in babies include: digestive symptoms, such as diarrhea, vomiting, constipation, etc.; skin symptoms, such as rash, eczema, etc.; respiratory symptoms, such as asthma, nasal congestion, sneezing, etc. If your baby develops any of the above symptoms, seek medical attention promptly. Level 2: How to prevent milk allergy in babies? Prevention is