We believe breast milk is the best food for infants. When in consultation with their healthcare professional, mothers and families find that optimal breastfeeding is not possible due to their infant’s medical condition, formulas for special medical purposes play a vital role in providing essential nutrients to infants. We have a global commitment to market breast-milk substitutes responsibly.


This website is about the management of cows’ milk protein allergy and nutritional solutions intended for infants. By continuing on this website, you accept that Nestlé Health Science supplies the information at your own request.


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Symptom: Wheezing

Wheezing: Baby checked by doctor

Wheezing is a high-pitched, whistling sound, which happens when the small airways become narrow, making it difficult for a baby to breathe. It is a common problem in babies and in general babies and children wheeze more than adults because of differences in the size of their airways.


Why does my baby have wheezing?

  • A food allergy, e.g. Cows’ Milk Allergy (CMA), or other allergies to dust or pollen
  • A chronic disease such as asthma
  • A respiratory tract illness or a cold virus

Could it be Cows’ Milk Allergy?

Wheezing is a common symptom for babies with CMA. Up to 30% of babies with CMA may have wheezing as a symptom.
Babies with CMA usually experience more than just one symptom and these symptoms can be very different from one another.
If you think that your baby has wheezing or is making wheezing sounds, it may be CMA. You may have even noticed other symptoms (besides wheezing), which may affect other parts of your baby’s body.
For a simple and easy way to understand the symptoms associated with CMA, you can use our symptom checklist.




This will allow you to select all the symptoms that your baby may have that may be cows’ milk-related. You can then discuss these with your doctor.


In any case, if you have any doubts or concerns about your baby’s health, you should always seek advice from a medical professional as soon as possible. The information on this website should not replace medical advice from a medical professional.


SmilesBack App

SmilesBack App


Cows’ milk allergy (CMA) is a common food allergy in baby’s and young children but it is often challenging to diagnose and may take many months and doctors appointments. If you suspect that your baby might have cows’ milk allergy, you can use SmilesBack to help shorten the journey to diagnosis and help put smiles back where they belong.

SmilesBack is an easy-to-use app that has been developed with allergy experts and tested by parents. It enables you to easily record your baby’s symptoms and feeds and summarise them in a one-page, expert-designed report, to support your doctor before they make a diagnosis.

Smilesback app on appstore Smilesback app on appstore  

OTHER SYMPTOMS OF COWS' MILK PROTEIN ALLERGY

IMPORTANT NOTICE: Breastfeeding is the best form of nutrition for babies and provides many benefits to babies and mothers. It is important that, in preparation for and during breastfeeding, you eat a healthy, balanced diet. Combined breast and bottle feeding in the first weeks of life may reduce the supply of your own breastmilk, and reversing the decision not to breastfeed is difficult. Always consult your healthcare professional for advice about feeding your baby. The social and financial implications of using infant formula should be considered. Improper use of an infant formula or inappropriate foods or feeding methods may present a health hazard. If you use infant formula, you should follow the manufacturer’s instructions for use carefully – failure to follow the instructions may make your baby ill. Formula for special medical purposes intended for infants must be used under medical supervision.