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Milk protein allergies come in two types:
Symptoms of IgE mediated reactions include one or more of the following:
?Skin problems such as eczema, urticaria, angioderma, dermatitis.
?Gastrointestinal problems such as nausea, vomiting, diarrhea.
?Respiratory problems such as wheezing, coughing, rhinitis, asthma.
Although extremely rare, anaphylactic reactions (severe and very rapid reactions) to cow?s milk protein may also occur following contact with the mouth or lips.
Symptoms of non-IgE mediated reactions include: gastrointestinal problems such as nausea, bloating, intestinal discomfort and diarrhoea and respiratory problems
Anaphylactic reactions do not occur.
Symptoms of Lactose intolerance are quite similar in many ways but no skin reaction or anaphylaxis as it is not actually an allergy but an intolerance that results in the sugar just fermenting in the gut:
Stomach rumbling, abdominal distension and increased wind.
Diarrhoea.
Abdominal colic.
Nausea.