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We’ve all been there — the runny nose that won’t quit, the mysterious rash, or that uncomfortable stomach upset after eating something “normal.” At first, we brush it off. Then we start avoiding random foods, blaming the weather, or reaching for antihistamines. But here’s the truth: when it comes to allergies, guessing only gets you so far. If you or your child are experiencing unexplained symptoms, it’s time to stop guessing — and start testing.

Let’s understand more about allergy testing with Dr. Sangeetha, who helps us break down what allergy tests can reveal, how they work, and why they’re an essential step in finding relief.

What Is Allergy Testing, Really?

Allergy testing is a diagnostic process that helps pinpoint what your immune system is reacting to. Allergies happen when your body sees a harmless substance — like pollen or peanuts — as a threat and overreacts. This overreaction leads to symptoms ranging from mild sneezing to serious swelling or digestive upset or the worst severity include anaphylaxis 

Testing helps identify these triggers, giving both patients and doctors a clear roadmap for treatment, avoidance, or desensitisation therapies. In other words, it’s not about avoiding everything “just to be safe” — it’s about knowing what you specifically react to.

Two Main Ways We Test

The two most common types of allergy tests are:

1. Skin Prick Test

This is often the first go-to for allergy detection. A small amount of allergen is placed on your skin (usually the forearm or back), and a tiny prick is made to allow it to enter the surface. If you’re allergic, you’ll see a small raised bump (like a mosquito bite) at the site within 15–20 minutes.

It’s quick, relatively painless, and ideal for common environmental and food allergens.

2. Blood Test (Specific IgE Test)

If skin testing isn’t possible — due to skin conditions or medication interference — a blood test may be used. This measures the levels of allergen-specific antibodies (IgE) in your blood. It’s helpful in cases where reactions are more severe or where a broad overview is needed.

Your doctor may use one or both types, depending on your medical history and symptoms.

What Are We Looking For?

You might be surprised how often allergies are overlooked. Two of the most common culprits we see include:

Dust Mite Allergy

This tiny household allergen is notorious for causing chronic nasal symptoms — sneezing, congestion, postnasal drip, or even that persistent “dry” cough. It’s not just about being “sensitive to dust” — if you’re reacting all year round, especially indoors, dust mites could be the reason.

Food Allergies (Eggs, Milk, Peanuts & More)

Food allergies in children and adults can appear as skin reactions (like hives), digestive symptoms (like nausea, cramps, diarrhoea), or even more severe reactions like facial swelling or breathing difficulty. Common triggers include eggs, milk, peanuts, shellfish, and soy — but the range is wide, and symptoms aren’t always immediate.

Getting tested helps narrow it down, especially in children who can’t always describe how they feel.

Why Testing Matters

Many allergy symptoms overlap with other conditions — asthma, sinus infections, eczema, irritable bowel syndrome. That’s why allergy testing plays such a crucial role: it separates fact from assumption.

More importantly, it gives you a plan. With clear results, you can:

• Avoid your true triggers — and stop avoiding the things that aren’t causing problems.
• Begin treatment with antihistamines, nasal sprays, or even allergy shots if needed.

Manage symptoms early before they escalate into more serious reactions.

Not Sure Where to Start?

If you or your child keeps reacting — but you’re not sure why — allergy testing is a safe, accurate first step. It can be life-changing to finally put a name to what’s been affecting your daily life.

Speak to your doctor. Get tested. Stop guessing.