What are the symptoms of a dairy allergy?

Dairy allergy: You mean cows milk allergy.In neonatal period when cow based formula is used the babies can present with milk protein allrgy, it presents with bloody stools.Beyond newborn dairy allergy can cause rash and itcing, and some people can not tolerate milkdue to lactose intolerance which is really not allergy, but their inability to digest lactose as the have deficiency of enzyme lactase.

Same for all foods: Allergic reaction to any food produces some or all of following: itchy/swollen lips/mouth/throat, nausea, vomiting, abdominal cramps, diarrhea, itchy/red skin, hives, nasal congestion, chest tightness, wheezing (especially in asthmatic), light headedness, low bp. These symptoms will occur each time as little as one sip or bite of the food is eaten. Avoid dairy until consult md.

Same for all foods: Allergic reaction to any food produces some or all of following: itchy/swollen lips/mouth/throat, nausea, vomiting, abdominal cramps, diarrhea, itchy/red skin, hives, nasal congestion, chest tightness, wheezing (especially in asthmatic), light headedness, low bp. These symptoms will occur each time as little as one sip or bite of the food is eaten. Avoid dairy until consult md.