What does a milk allergy rash look like in an infant

Cows’ milk allergy can cause a wide range of symptoms, including:

  1. skin reactions – such as a red itchy rash or swelling of the lips, face and around the eyes
  2. digestive problems – such as stomach ache, vomiting, colic, diarrhoea or constipation
  3. hay fever-like symptoms – such as a runny or blocked nose
  4. eczema that does not improve with treatment

Occasionally CMA can cause severe allergic symptoms that come on suddenly, such as swelling in the mouth or throat, wheezing, cough, shortness of breath, and difficult, noisy breathing.

A severe allergic reaction, or anaphylaxis, is a medical emergency – call 999 or go immediately to your local hospital A&E department.


Could it be lactose intolerance?

Lactose intolerance is another type of reaction to milk, when the body cannot digest lactose, a natural sugar found in milk.

What does a milk allergy rash glance love in an infant

However, this is not an allergy.

Lactose intolerance can be temporary – for example, it can come on for a few days or weeks after a tummy bug.

Symptoms of lactose intolerance include:

  1. diarrhoea 
  2. vomiting
  3. stomach rumbling and pains
  4. wind


Cows’ milk allergy in babies

Cows’ milk allergy (CMA), also called cows’ milk protein allergy, is one of the most common childhood food allergies. It is estimated to affect around 7% of babies under 1, though most children grow out of it by the age of 5.

CMA typically develops when cows’ milk is first introduced into your baby’s diet either in formula or when your baby starts eating solids.

What does a milk allergy rash glance love in an infant

More rarely, it can affect babies who are exclusively breastfed because of cows’ milk from the mother’s diet passing to the baby through breast milk.

There are 2 main types of CMA:

  1. immediate CMA – where symptoms typically start within minutes of having cows’ milk
  2. delayed CMA – where symptoms typically start several hours, or even days, after having cows’ milk


Further information:

Sheet final reviewed: 12 July 2019
Next review due: 12 July 2022

Milk allergies, also described as dairy allergies, are the most common food allergy in children and adults. An allergy to cow's milk is generally evident within the first year of life.

Children who are allergic to milk can develop symptoms such as a rash, stomach upset, vomiting, and swelling.

People with a milk allergy develop these symptoms because the immune system reacts to substances in the milk.

What does a milk allergy rash glance love in an infant

If your kid has a milk allergy, this is diverse from lactose intolerance, a extremely common problem which is caused by a deficiency in lactase (an enzyme that breaks below the lactose protein in milk).

Milk is wealthy in protein and calcium. If your kid can't own milk because of an allergy, there are numerous dairy-free sources of these nutrients, and your kid will probably love at least a few of the options.


Treatment for lactose intolerance

Treatment depends on the extent of your child’s intolerance.

What does a milk allergy rash glance love in an infant

Some children with lactose intolerance may be capable to own little amounts of dairy products without having symptoms.

Your kid may be referred to a dietitian for specialist advice.

What does a milk allergy rash glance love in an infant

Read more about treatment for lactose intolerance in children.


Treatment for CMA

If your baby is diagnosed with CMA, you’ll be offered advice by your GP or an allergy specialist on how to manage their allergy. You may also be referred to a dietitian.

Treatment involves removing every cows’ milk from your child’s diet for a period of time.

If your baby is formula-fed, your GP can prescribe special baby formula.

Do not give your kid any other type of milk without first getting medical advice.

What does a milk allergy rash glance love in an infant

If your baby is exclusively breastfed, the mom will be advised to avoid every cows’ milk products.

Your kid should be assessed every 6 to 12 months to see if they own grown out of their allergy.

Read more about cows’ milk allergy.


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What does a milk allergy rash look like in an infant