Allergy Testing in Dublin for Adults and Children

An allergy occurs when the immune system reacts to a substance that is usually harmless. Inhalant allergies are triggered by particles breathed in, such as grass and tree pollen, house dust mite, pet dander and mould. These are common concerns in Ireland and may cause sneezing, a blocked or runny nose, itchy or watery eyes, cough, wheeze, or worsening asthma. Symptoms can be seasonal, as with many pollen allergies, or present throughout the year.

Food allergy can cause hives, swelling, vomiting, abdominal symptoms, coughing, wheezing or, in severe cases, anaphylaxis. Not every symptom after eating is an allergy: intolerances and other medical conditions can look similar but do not involve the same immune mechanism. This is why testing should be selected from the clinical history rather than using a broad panel without a clear reason.

A positive test shows sensitisation to an allergen, but it does not by itself prove that the allergen causes symptoms. Equally, test results must be considered with the timing and nature of previous reactions. Dr. Baranowska interprets the result alongside the history and examination, helping to avoid unnecessary dietary restrictions or avoidance measures based on a test result alone.

During skin prick testing, small drops containing selected allergens are placed on the skin, usually on the forearm or back, and the surface is gently pricked through each drop. A control is included so the response can be interpreted properly. The sites are then checked for a small raised, itchy reaction. The pricks may feel briefly sharp and a positive site can itch, but the reaction is usually local and settles.

Some medicines, particularly antihistamines, can affect skin test results. Do not stop prescribed medicine on your own; the clinic will tell you in advance whether anything needs to be paused and for how long. Skin testing may not suit everyone, including some people with extensive active skin disease or when an interfering medicine cannot safely be stopped.

A specific IgE blood test may be advised instead of, or alongside, skin testing. It requires a blood sample and is useful in selected circumstances, but it still needs careful interpretation because a detectable antibody does not always mean a person will react in everyday life. The choice of allergens and test method is based on the consultation rather than a one-size-fits-all panel.

The appointment starts with a detailed discussion of symptoms: what happened, how quickly it began, how long it lasted, and whether it followed a particular food, season, animal, building or activity. Bring a list of medicines and, where possible, photographs of rashes, food labels or a written symptom diary. Previous test results, hospital letters and details of any emergency treatment can also be helpful.

Dr. Baranowska then decides whether testing is likely to add useful information. Skin prick testing may be performed at the appointment when appropriate, while blood testing may be recommended in other cases. Testing is targeted to plausible triggers. It is not a screening exercise for every possible allergen, because indiscriminate testing can produce results that are difficult to interpret and may lead to unnecessary worry.

Once the findings are reviewed, you will receive an explanation of what is likely, what remains uncertain and what to do next. Depending on the diagnosis, the plan may include realistic avoidance measures, medicines for symptom control, an action plan for accidental exposure, or referral for allergen immunotherapy where appropriate. Further assessment may be needed when the history and test do not agree.

Children may present with hives, swelling, vomiting after a food, persistent nasal symptoms, itchy eyes, eczema, cough or wheeze. Babies and young children cannot always describe what they feel, so the sequence of events reported by a parent or carer is especially important. A photograph of a rash and an exact list of ingredients can be more informative than trying to remember the event later.

Skin prick testing can be used in children when clinically appropriate, with only allergens relevant to the history selected. Blood testing may be preferred in some situations. Neither test predicts how severe a future reaction will be, and results can change as a child grows, so decisions about food avoidance or reintroduction should be made with medical guidance.

Do not remove multiple foods from a child's diet solely because of a suspected allergy or an unreviewed test result. Restrictive diets can make balanced nutrition harder, particularly during growth. The consultation aims to identify what genuinely needs to be avoided, provide practical advice for home and school, and decide whether further specialist assessment is required.

Anaphylaxis is a severe allergic reaction that can develop quickly. Warning signs include difficulty breathing, noisy breathing or wheeze, swelling of the tongue or throat, trouble speaking or swallowing, sudden dizziness, collapse, or a child becoming pale, floppy or unusually unresponsive. A widespread rash may occur, but anaphylaxis can happen without visible skin symptoms.

If anaphylaxis is suspected, call 112 or 999 immediately. If the person has been prescribed an adrenaline auto-injector, use it without delay according to their action plan and tell the emergency call handler. Do not wait for a clinic appointment or for symptoms to settle. A person whose symptoms improve after adrenaline still needs urgent medical assessment because symptoms can return.

Less severe but recurring symptoms should still be assessed, especially breathing symptoms, reactions after food, or swelling without a clear cause. The clinic is at Thundercut Alley, Smithfield, Dublin 7 (D07VH01), a few minutes from the Smithfield Luas stop, and is open Monday to Saturday. To arrange an appointment, call +353 85 102 4218.