She has a milk allergy.

她对牛奶过敏。

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People who are lactose intolerant or have a milk allergy.

有乳糖不耐症和牛奶过敏的人。

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Milk allergy is the most prevalent type of food allergy.

牛奶是最常见的一种食物过敏。

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Eczema, reflux, colic, diarrhoea and even constipation may be caused by an underlying milk allergy.

BBC: Children with allergies 'being let down'

For some infants, a milk allergy can't be missed - as soon as the baby has infant formula he develops hives and swelling, but for others the reaction is delayed and causes chronic symptoms.

BBC: Children with allergies 'being let down'

Some common allergy triggers are milk, shellfish, legumes, sesame, eggs and tree nuts like almonds and walnuts.

WSJ: Finding Food Allergy Allies