Egg Allergy: Symptoms in Adults and Children

Chicken eggs are among the most common food allergens — along with cow's milk, wheat, soy, peanuts, tree nuts, and seafood. The reaction can be mild or serious. Below is a calm breakdown of how to distinguish allergy from intolerance and what to look for.

Can you be allergic to eggs

Yes. According to various studies, chicken eggs and cow's milk are the most common causes of allergy in children. Food allergy is an abnormal immune reaction: the immune system mistakenly identifies food proteins as dangerous. The actual prevalence of food allergy is 1.5–2% among adults and about 6% in children, while the number of people who believe they have an allergy is noticeably higher. Food allergy is distinguished from food intolerance: intolerance is a reaction without involvement of the immune system, usually with bloating and abdominal pain a few hours after eating.

Why egg white allergy occurs

Allergy to chicken egg white is associated with immunoglobulin E (IgE) binding to food molecules and triggering the release of inflammatory substances such as histamine. The exact reason why this happens is unknown. The risk is higher if you or close relatives have other allergies, asthma, or eczema. Risk factors include heredity, vitamin D deficiency, obesity, and excessive cleanliness. Urban children have a higher risk than rural children.

Symptoms of egg allergy in adults

Symptoms usually begin within a few minutes to two hours after eating, but sometimes appear later. They affect any part of the body, sometimes simultaneously. Common signs: itchy skin or raised rash (hives), swelling of the lips, face, and eyes, cough, wheezing, shortness of breath, hoarseness, sneezing or stuffy nose, nausea and vomiting, abdominal pain, diarrhea, dizziness. The set of symptoms in one person can vary from case to case — sometimes it depends on the amount eaten.

Egg allergy in children and infants

Children and adults can have food allergy, and some children outgrow it. Sometimes allergy first appears in adulthood. In a child, reasons to see a doctor may include rash, hives, vomiting, or swelling after eggs, especially if there is eczema, asthma, or other allergies. Separately: some people experience itching of the mouth and throat after raw fruits, vegetables, and nuts — this is oral allergy syndrome, usually not serious.

What the rash looks like with egg allergy

Most often it is hives — raised, itchy spots — or redness of the skin. The rash may appear together with swelling of the lips, face, or eyes. A diagnosis cannot be made from internet photos: similar rashes occur in various conditions. For guidance — a brief distinction.

• Allergy: itching, hives, swelling of lips and eyes, cough or shortness of breath, vomiting, diarrhea, dizziness — from minutes to two hours after eating.
• Intolerance: mainly bloating and abdominal pain, usually after a few hours, without an immune reaction.
• Oral allergy syndrome: itching in the mouth and throat after raw fruits, vegetables, or nuts.

Diagnosis and when to see a doctor urgently

If food allergy is suspected, see a doctor. They will ask about symptoms, family history, and other allergies, examine you, and refer to a specialist if necessary. Tests may include: skin prick test, blood tests, elimination diet, and oral challenge test — the most accurate test for food allergy. You may be asked to keep a food and symptom diary.

Egg allergy by itself is not a reason to call an ambulance; 103 or 112 — if lips, mouth, throat, or tongue suddenly swell; breathing is very fast or difficult (wheezing, feeling of suffocation); throat tightens or swallowing is difficult; skin, tongue, or lips turn blue, gray, or pale; the person suddenly becomes very confused, drowsy, or dizzy; someone loses consciousness and does not wake up; a child becomes limp, unresponsive as usual. Do not drive to the hospital yourself — the 103/112 operator will tell you what to do.

This material is for reference: it helps you navigate, but does not replace a doctor's consultation — if you suspect egg allergy, discuss both symptoms and further steps with them.

This content is for reference and does not replace a doctor's consultation. Medical disclaimer