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Allergy testing in children: how not to get confused among symptoms and tests
Is it true that a child's allergy is "allergic to everything at once"?
No. One of the most common mistakes parents make is thinking that their child is allergic to everything: dust, food, animals. In fact, Children's immunity is still developing, so reactions can be unstable and symptoms can resemble other illnesses.
Allergy testing helps not to confirm "allergy in general", but to identify the exact substance, to which the body reacts.
What symptoms should alert parents?
Often sneeze, nasal congestion without temperature
Dry cough or wheezing, which worsens at night
Urticaria, rash, itching of the skin
Redness of the eyes, lacrimation
Permanent redness of the cheeks or elbow bends
Aggravation after contact with animals or food
Even mild symptoms that recur should be discussed with a pediatrician or allergist.
At what age can allergy tests be done?
Blood test for specific IgE (to allergens) — from 6 months
Skin tests — usually from 4–5 years old, in stable condition
Panel studies — from 1 year of age according to indications (food, household, pollen allergies)
The test is selected individually - depending on age, symptoms, and possible allergens.
What tests are done on children?
| Analysis type | What does it reveal? | Age |
|---|---|---|
| IgE to individual allergens | Food, household, pollen proteins | From 6 months. |
| Immunoblot (panels) | Allergen groups + antibody levels | From 1 year |
| Prick tests | Skin reaction to allergen drops | After 4 years |
| Component diagnostics (molecular allergy) | The exact proteins that trigger the reaction | Individually |
What if the result is negative but there are symptoms?
Allergies do not always produce high IgE or a noticeable skin reaction. There is a concept non-IgE-mediated allergy, pseudoallergies or cross-reactions, which are difficult to detect using standard methods.
In such cases, it is necessary comprehensive assessment by a doctor, possibly — dietary diagnostics, additional examinations, keeping a food diary.
Why shouldn't you do tests "just in case"?
The result may be false positive (especially in toddlers)
No symptoms the analysis has no clinical significance
It is important to examine after consulting a doctor, which will determine which allergens are suspected
Only in this way will the analysis become a tool for treatment, not a list of unnecessary prohibitions.
How to prepare a child for analysis
For blood test: on an empty stomach or 3–4 hours after eating
Do not take antihistamines (for skin tests) 5–7 days
Psychologically preparing a baby is not painful like a vaccination
Take with you list of products/factors, after which symptoms occurred
What to do after receiving the result
Don't give up everything at once — discuss with an allergist
If necessary, they are appointed anti-inflammatory drugs, change of life, hypoallergenic diet
If confirmed strong sensitivity, is being considered ASIT (allergy vaccination) — from 5 years old
A proper examination is not a list of prohibitions, but an action plan to make life easier for the child and the entire family.
