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Milk allergy is an adverse immune reaction to one or more proteins in cow's milk.Symptoms may take hours to days to manifest, with symptoms including atopic dermatitis, inflammation of the esophagus, enteropathy involving the small intestine and proctocolitis involving the rectum and colon. [2]
Allergy to cow's milk is the most common food allergy in infants and young children [11] but most outgrow the allergy in early childhood. Introducing baked cow's milk to allergic patients is associated with accelerated resolution of milk allergy. [28]
Food allergies affect up to 10% of the worldwide population, and they are currently more prevalent in children (~8%) than adults (~5) in western nations. [34] In several industrialized countries, food allergies affect up to 10% of children. [93] Children are most commonly allergic to cow's milk, chicken eggs, peanuts, and tree nuts. [21]
Roughly 10% of children with a milk allergy will have a reaction to beef. [51] Lactose intolerance, a common reaction to milk, is not a form of allergy at all, but due to the absence of an enzyme in the digestive tract. [52] Those with tree nut allergies may be allergic to one or to many tree nuts, including pecans, pistachios, and walnuts. [48]
These affect the most people and the proteins are commonly found in other ingredients. They account for about 90% of food allergies. [5] The main eight are: Milk – A milk allergy is different from lactose intolerance in that the reaction is caused typically by casein, a protein found in milk. Eggs; Fish; Crustacean shellfish; Tree nuts
Allergy immunotherapy can be administered orally (as sublingual tablets or sublingual drops), or by injections under the skin (subcutaneous). [46] [47] Immunotherapy contains a small amount of the substance that triggers the allergic reactions. [48] Ladders are also used for egg and milk allergies as a home-based therapy mainly for children.
Children with non-IgE-mediated cows milk intolerance have a good prognosis, whereas children with IgE-mediated cows milk allergy in early childhood have a significantly increased risk for persistent allergy, development of other food allergies, asthma and rhinoconjunctivitis.
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