Hope & Histamine: The Paediatric Allergy Podcast
“Helping you understand allergies—one episode at a time”Welcome to Hope & Histamine, the trusted podcast for families navigating the complex world of paediatric allergies. Hosted by a dedicated healthcare professional, this show offers clear, compassionate, and evidence-based guidance on the diagnosis, treatment, and day-to-day management of allergies and atopic conditions in children.From eczema to food allergies, asthma to anaphylaxis, each episode breaks down medical facts into practical advice—empowering parents, caregivers, and patients with reliable information and hope.Tune in for expert insights, real stories, and up-to-date recommendations designed to help you breathe a little easier.
The Role of Vitamin D in Allergic Disease: Eczema, Asthma, Food Allergy and Beyond
In this episode of Hope & Histamine, we explore the fascinating and often debated role of vitamin D in allergic disease. From eczema, asthma, and allergic rhinitis to food allergy, vitamin D has been linked to immune regulation and allergic inflammation in ways that continue to generate interest among clinicians, researchers, and families alike.
We discuss what vitamin D actually does in the body, why it matters for the immune system, and what current evidence suggests about its relationship with allergic conditions in children. Does low vitamin D increase allergy...
Severe Asthma in Children: Evaluation, Diagnosis and Management
Severe asthma in children can be challenging to recognise, investigate and manage effectively. In this episode of Hope & Histamine: The Paediatric Allergy Podcast, we explore the evaluation and management of severe asthma in children, including how to distinguish it from difficult-to-treat asthma, key clinical assessments, common mimics, adherence issues, comorbidities, and the latest treatment approaches.
We discuss the importance of a structured paediatric severe asthma assessment, the role of inhaler technique, environmental triggers, multidisciplinary input, and when to consider advanced therapies such as biologics. Whether you are a paediatrician, trainee, allergy specialist, respiratory...
Understanding Biomarkers in Asthma and Allergic Diseases
In this episode, we explore the growing role of biomarkers in asthma and allergic diseases and why they are becoming essential in modern diagnosis, phenotyping, monitoring, and personalised treatment. We discuss key asthma biomarkers and allergy biomarkers, including blood eosinophils, FeNO (fractional exhaled nitric oxide), total and specific IgE, and their relevance in identifying type 2 inflammation, allergic asthma, severe asthma, and other allergic conditions.
This episode looks at how biomarkers in asthma can help support accurate diagnosis...
How Cigarette Smoke Worsens Asthma: Symptoms, Risks and Prevention
How does cigarette smoke affect asthma? In this episode, we discuss the relationship between asthma and cigarette smoke exposure, including secondhand smoke, passive smoking, and the impact of tobacco smoke on airway inflammation, wheeze, cough, breathlessness, asthma attacks, and long-term asthma control. Learn why smoke exposure is a major asthma trigger, how it affects children and adults, and what families and healthcare professionals can do to minimise exposure and protect lung health. A clear, practical episode for anyone interested in asthma prevention, asthma triggers, respiratory health, and smoke-free living.
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Treatable Traits in Asthma Care: A Personalised Medicine Approach to Better Asthma Control
Asthma care is changing. In this episode, we explore the concept of treatable traits in asthma and why a personalised, precision-medicine approach is transforming the way we assess and manage patients. Rather than viewing asthma as a single disease, the treatable traits model helps clinicians identify specific biological, clinical, and behavioural factors that drive symptoms, poor control, and exacerbations.
We discuss how traits such as eosinophilic inflammation, poor inhaler technique, allergen exposure, obesity, smoking, dysfunctional breathing, anxiety and comorbid rhinitis can all influence asthma outcomes—and how ta...
Gustatory Sweating After Eating: Frey’s Syndrome Misdiagnosed as Food Allergy
Frey’s syndrome can look exactly like a food allergy: facial flushing, warmth, sweating (sometimes even a “rash-like” redness) that appears within minutes of eating. Parents panic, clinicians worry about IgE-mediated reactions, and children can end up labelled with a food allergy they don’t actually have.
In this episode, we unpack Frey’s syndrome (gustatory sweating)—why it happens, who gets it (including infants and children), and the classic pattern: unilateral or patchy facial redness/sweating triggered by eating, with no systemic symptoms like wheeze, vomiting, hypotension, or widespread urticaria. We’ll contra...
Foetal Origins of Allergy: How Early Nutrition Programs Lifelong Immune Health
In this episode, we unpack The Foetal Origins of Allergy and the idea that the foundations of allergic disease may be laid before birth. Using the lens of early nutritional programming (often discussed within the DOHaD – Developmental Origins of Health and Disease framework), we explore how the in-utero environment can influence immune development, tolerance, and later risk of conditions like eczema, food allergy, allergic rhinitis, and asthma.
We’ll break down what the science actually suggests about key influences such as maternal diet quality, vita...
Allergic Reactions to Anisakis in Fish: Symptoms, Diagnosis & Prevention
Ever had a patient (or child) react to fish even when it’s been properly cooked—and the story just doesn’t fit a classic “fish allergy”? This episode dives into Anisakis: the tiny parasitic worm found in marine fish and squid that can trigger allergic reactions ranging from hives and swelling to anaphylaxis—sometimes even without active infection.
We break down:
What Anisakis is and which fish are most commonly implicatedHow reactions can mimic (or coexist with) true fish/seafood allergyTypical symptoms: urticaria, angioedema...Scombroid (Histamine) Fish Poisoning: Symptoms, Treatment & How to Prevent It
Ever seen someone develop flushing, hives, a pounding headache, or even wheeze soon after eating fish—and everyone assumes it’s a “fish allergy”? In this episode, we unpack Histamine (Scombroid) Fish Poisoning, a common and often mislabelled cause of allergy-like reactions after eating fish such as tuna, mackerel, mahi-mahi, sardines, anchovies, and bonito.
You’ll learn why it happens (histamine build-up from improper chilling/handling), how fast symptoms start, and the key clinical clues that help you tell scombroid vs true IgE-mediated fish allergy. We cover t...
Shellfish Allergy in Children: Symptoms, Diagnosis, Testing & Treatment
Shellfish allergy can feel scary—especially when reactions can be sudden and severe. In this episode, we break down shellfish allergy in a clear, practical way: common symptoms (from hives to breathing problems), when to suspect anaphylaxis, and what to do in the moment. We also cover diagnosis and testing (skin prick tests, blood IgE, and when an oral food challenge might be considered), plus the tricky stuff like cross-contact in restaurants, takeaway risks, and food labels.
Whether you’re a parent, teenager, or clinician, you’ll leave with a confident plan—how to avoid shellfis...
Does Colostrum Protect Against Peanut Allergy? Birth Cohort Findings Explained
In this episode, we explore a fascinating question in early-life allergy prevention: could colostrum act as a protective factor against peanut allergy? Using evidence from a birth cohort study, we break down what the research actually found, how strong the association is, and what it might mean for parents and clinicians.
We’ll cover:
What colostrum is and why it matters for immune developmentHow a birth cohort study is designed (and what it can and can’t prove)Possible biological mechanisms: immune tolerance, gut barrier function, and early micr...Extraintestinal Manifestations of Coeliac Disease: Symptoms Beyond the Gut (Skin, Anaemia, Bones & Brain)
Coeliac disease isn’t always a “gut problem.” In this episode of Hope & Histamine: The Paediatric Allergy Podcast, we unpack the extraintestinal manifestations of coeliac disease—the symptoms that show up beyond the digestive tract and can be easy to miss.
We explore the most common non-GI presentations, including iron-deficiency anaemia, fatigue, poor growth or delayed puberty, mouth ulcers, dental enamel defects, bone pain/low bone density, headaches, low mood/brain fog, and the clas...
Coeliac Disease Explained: Symptoms, Testing, and Going Gluten-Free
Coeliac disease can be easy to miss — and the symptoms aren’t always “classic” tummy pain or diarrhoea. In this episode of Hope & Histamine: The Paediatric Allergy Podcast, we break down what coeliac disease is, why it happens, and how to recognise it early, especially in children.
We cover:
The common and hidden symptoms (from abdominal pain and bloating to fatigue, anaemia, mouth ulcers, headaches, and poor growth)Who should be tested — including children with family history, type 1 diabetes, thyroid disease, or persistent...Wheat Allergy: Symptoms, Causes, Diagnosis & Management
Wheat allergy can be confusing — especially when “gluten-free” gets mixed up with coeliac disease, wheat intolerance, or everyday tummy troubles. In this episode of Hope & Histamine: The Paediatric Allergy Podcast, we break down wheat allergy in babies and children in a clear, practical way.
You’ll learn the common symptoms (from hives and vomiting to wheeze and anaphylaxis), when to suspect an IgE-mediated reaction vs a delayed reaction, and how clinicians diagnose wheat allergy using a focused history, skin prick testing, specific IgE, and (when appropriate) supervis...
Pancake Syndrome Explained: Dust Mite–Contaminated Flour and Severe Food Allergy
🥞 Can pancakes really cause anaphylaxis?
In this episode of Hope & Histamine: The Paediatric Allergy Podcast, we explore Pancake Syndrome — a rare but potentially severe allergic reaction caused by dust mite-contaminated flour rather than the pancake ingredients themselves.
You’ll learn how improper storage of flour can lead to mite proliferation, why cooking does not eliminate the allergen risk, and which children are most at risk — particularly those with house dust mite allergy, eczema, or allergic rhinitis. We discuss the typical symptoms, including...
House Dust Mite Allergy Explained: Symptoms, Triggers, and Practical Solutions
Is house dust mite allergy the hidden cause of year-round sneezing, blocked nose, wheeze, or eczema in children?
In this episode of Hope & Histamine: The Paediatric Allergy Podcast, we explore house dust mite allergy—one of the most common triggers of persistent allergic symptoms in children and adults. This episode explains what house dust mites are, why they cause allergy, and how exposure inside the home can drive ongoing symptoms such as allergic rhinitis, asthma, cough, and eczema.
We cover:
What house dust mites are and wh...Grass Pollen Allergy (Hay Fever): Causes, Symptoms, and Modern Treatments
Grass pollen allergy, commonly known as hay fever or seasonal allergic rhinitis, affects millions of children and adults—especially during the spring and summer months. In this episode, we break down what a grass pollen allergy is, why it happens, and how it can be effectively diagnosed and managed.
You’ll learn how grass pollen triggers allergic inflammation, the common symptoms to watch out for (sneezing, itchy eyes, nasal congestion, cough, and fatigue), and how to distinguish hay fever from viral infections. We also...
Pollen Food Syndrome (Oral Allergy Syndrome): Symptoms, Triggers & Practical Management
Pollen Food Syndrome (also known as Oral Allergy Syndrome) is one of the most common — yet frequently misunderstood — food-related allergic conditions.
In this episode of Hope & Histamine, we unpack why people with hay fever or pollen allergy can experience itching, tingling, or swelling of the lips, mouth, and throat after eating certain fresh fruits, vegetables, and nuts.
We explain:
What Pollen Food Syndrome is and how it differs from true IgE-mediated food allergyThe role of pollen–food cross-reactivity (birch, grass, and weed pollens)Common trigger foods and why symptoms often occur...Blueberries for Babies: Introducing Blueberry as a First Complementary Food
Can babies eat blueberries as one of their first solid foods? When should blueberries be introduced during weaning and complementary feeding? Are blueberries safe, nutritious, and allergy-friendly for infants?
In this episode, we explore the role of blueberries as an early complementary food for babies starting solids. Drawing on evidence-based infant nutrition guidance, this episode breaks down when and how to introduce blueberries, their nutritional benefits (including fibre, antioxidants, and vitamins), and practical preparation tips to reduce the risk...
Precautionary Allergen Labelling: What ‘May Contain’ Really Means for Families
Precautionary Allergen Labelling (PAL) — those familiar phrases like “may contain nuts” or “made in a factory that handles milk” — is meant to keep people with food allergies safe. But does it always help? Or can it create confusion and unnecessary fear?
In this episode, we unpack the world of precautionary allergen labels and what they really mean for families living with food allergies. We explore how PAL is regulated, why companies use it, and the challenges it brings for parents trying to make safe food choices for their children.
We also discuss:
Why do <...Nasal Adrenaline: A Game-Changer for Anaphylaxis Care?
Severe allergic reactions can happen anywhere, anytime — and every second counts. In this episode, we explore the exciting new development of adrenaline nasal spray (Neffy) as a potential needle-free treatment for anaphylaxis. Could this innovation improve how quickly lifesaving medication is delivered? Could it reduce hesitation, fear of injections, and treatment delays?
Join us as we break down:
How adrenaline nasal spray works in the bodySafety, ease of use, and real-world benefitsDifferences vs. traditional adrenaline auto-injectors (e.g., EpiPen)What this could mean for patients, carers, schools, and emergency respondersThe future of ...Ultra-Processed Foods: How They Impact Your Health & Long-Term Disease Risk
Ultra-processed foods (UPFs) are now a major part of children’s diets — colourful packaging, cartoon characters, and convenience make them hard to resist. But what are these foods really doing to young bodies and developing brains?
In this episode, we uncover the science behind UPFs and children’s health, including:
• How ultra-processed foods affect growth, metabolism, and immune health
• Links with obesity, diabetes, fatty liver disease & heart disease risk
• The impact on gut bacteria, behaviour, mood, and sleep
• Why kids become “hooked” on high-sugar, high-additive foods
• Practical tips...
Multiplex Allergy Testing with ImmunoCAP ISAC: What Clinicians Need to Know
Discover how ImmunoCAP ISAC multiplex allergen testing is reshaping the future of allergy diagnosis.
In this episode, we break down the science behind ISAC technology, how it identifies over 100 molecular allergen components in a single test, and why it’s transforming clinical decision-making for food allergy, respiratory allergy, venom allergy, and complex polysensitisation.
We explore:
How ImmunoCAP ISAC works and what makes it uniqueWhen clinicians should consider multiplex molecular diagnosticsThe difference between whole-extract tests vs component-resolved approachesReal-world advantages: precision, phenotyping, cross-reactivity patterns & risk stratificationLimitations, costs, and interpretive challenges every clinician should knowWhere IS...Basophil Activation Test (BAT): Accuracy, Interpretation & Clinical Use in Allergy Diagnosis
In this episode, we dive deep into the Basophil Activation Test (BAT) — one of the most advanced tools in modern allergy diagnostics. Join us as we break down how BAT works, when to use it, and what the evidence really says about its accuracy in diagnosing IgE-mediated food allergy, drug allergy, and complex sensitisation patterns.
You’ll learn:
• How BAT compares with skin prick testing and specific IgE
• The clinical value of basophil activation markers such as CD63 and CD203c
• When BAT i...
How Accurate Are Allergy Tests? Unpacking IgE-Mediated Food Allergy Diagnostics
How accurate are the tests we rely on to diagnose IgE-mediated food allergy? In this episode, we explore the science behind skin prick testing, serum-specific IgE, and oral food challenges, examining their sensitivity, specificity, predictive values, and real-world limitations.
Join us as we separate evidence from assumption, discussing false positives, cross-reactivity, and component-resolved diagnostics—and how to interpret results in the context of clinical history.
Whether you’re a clinician, allergy trainee, or researcher, this episode will help you navigate the complex landscape of allergy diagnostics w...
Decoding Component-Resolved Diagnostics: A New Era in Allergy Testing
Component-Resolved Diagnostics (CRD) is transforming the way we diagnose and manage food and aeroallergy. In this episode, we break down what CRD really is, how molecular allergy testing works, and how it improves clinical decision-making beyond traditional IgE and skin prick testing.
We explore:
✅ What CRD is and when to use it✅ Benefits of molecular allergen testing over extract-based testing✅ Clinical interpretation of key allergen components (Ara h 2, Cor a 9, Fel d 1 and more)✅ Risk stratification for anaphylaxis using CRD✅ Practical pros, limitations, and cost considerations✅ When CRD really changes patient outcomesWhether you are a
Peach Allergy Explained: Hidden Risks Behind a Summer Favourite
Peach allergy is more common than most people realise—especially in Europe and among people with seasonal hay fever or birch pollen allergy. In this episode, we unpack everything you need to know about peach allergy, including oral allergy syndrome (OAS) and lipid transfer protein (LTP) allergy, two very different immune responses linked to peach sensitivity.
We explore:
✅ Why some people get an itchy mouth from peaches
✅ When a peach allergy can cause anaphylaxis
✅ Practical advice for diagnosis, allergy testing and manageme...
Lipid Transfer Protein Allergy Explained: From Peaches to Peanuts
In this episode of Hope & Histamine: The Paediatric Allergy Podcast, we explore the complex world of Lipid Transfer Protein (LTP) allergy — a powerful plant food allergen that can cause severe and unexpected allergic reactions.
Join us as we unpack how LTP allergy differs from pollen-related food syndromes, why it’s often seen in Mediterranean populations, and what clinicians, families, and patients need to know about cross-reactivity, diagnosis, and management.
You’ll learn about:
🌿 What LTPs are and how they trigger a...
From Birch to Bite: The Hidden Allergy of Pollen Food Allergy Syndrome
Have you ever wondered why some people get an itchy mouth or tingling lips after eating fresh fruit, vegetables, or nuts—especially during pollen season? In this episode of Hope & Histamine, we uncover the fascinating connection between pollen and food allergies, known as Pollen Food Allergy Syndrome (PFAS) or Oral Allergy Syndrome.
Join us as we explore how pollen proteins “cross-react” with certain plant foods, why birch and grass pollens are the usual culprits, and what symptoms parents and clinicians should watch for. We’ll also discuss practical tips on diagnosis, dietary management, and when...
When Beans Bite Back: Everything You Need to Know About Legume Allergies
Did you know that allergies to beans, peas, lentils and chickpeas are becoming more common? In this episode, we explain what a legume allergy really means, why some people with peanut allergy react to other legumes, and how to read food labels safely.
We explore the science and clinical nuances of legume allergy, from immunological cross-reactivity and diagnostic challenges to practical dietary management and allergen labelling under UK and EU regulations.
We also provide practical tips for parents, schools, and young people living with food allergies — from meal planning to navigating eating out wit...
Living With Soya Allergy: Hidden Ingredients, Soya Lecithin & Label Dilemmas
Soya is one of the 14 major allergens, but it often hides in unexpected places. In this episode, we explore the world of soya allergy, uncovering the role of soya lecithin in foods, and what allergen labelling laws really mean for patients, families, and healthcare professionals. We’ll discuss the difference between soya protein and soya derivatives, why some people react to trace amounts, and how manufacturers handle precautionary allergen labelling.
Whether you’re living with a soya allergy, supporting a child with food allergies, or working in allergy care, this...
Beyond Typical: Understanding Atypical FPIES and Its Unique Challenges
Beyond the Usual: Exploring Atypical FPIES takes you inside the complex world of Food Protein-Induced Enterocolitis Syndrome (FPIES)—a rare but increasingly recognised form of food allergy. This podcast unpacks the science, clinical challenges, and lived experiences surrounding atypical FPIES, where allergic mechanisms blur the line between classic FPIES and IgE-mediated food allergy.
Whether you’re a healthcare professional, researcher, or parent navigating FPIES, this podcast offers clear, compassionate, and practical knowledge to help make sense of a challenging condition.
Join us as we s...
FPIES Uncovered: Demystifying Food Protein-Induced Enterocolitis Syndrome for Parents & Clinicians
Food Protein-Induced Enterocolitis Syndrome (FPIES) can be overwhelming for parents and healthcare professionals alike. In this episode, we break down everything you need to know about FPIES — from understanding the symptoms and triggers to exploring the latest research, diagnosis strategies, and treatment options.
Featuring expert insights and practical tips, this podcast is your go-to resource for navigating FPIES with confidence. Whether you’re a parent, paediatrician, allergist, or dietitian, you’ll gain valuable knowledge to support children and families living with FPIES.
Sources:
Brown-Whitehorn, T.F. and Cianferoni, A. (eds.) (2019) Food Pr...Beyond the EpiPen: Debunking Anaphylaxis Myths and Misconceptions
Anaphylaxis remains one of the most critical emergencies in allergy care, yet myths, misconceptions, and inconsistent guidelines often leave both clinicians and patients confused. In this episode, we cut through the noise to explore the truth behind anaphylaxis management, debunk common myths about epinephrine use, and highlight key differences across major guidelines from organisations like BSACI, EAACI, AAAAI, and NICE.
Join us as we bring in expert insights, real-world case studies, and evidence-based recommendations to help healthcare professionals, educators, and allergy advocates improve patient safety...
Anaphylaxis Unpacked: Recognition & Response
Anaphylaxis is a life-threatening medical emergency that can strike suddenly and escalate within minutes. In this episode, we unpack the essentials of recognising, treating, and preventing anaphylaxis. From the first warning signs and the crucial role of adrenaline to long-term care and patient education, we explore practical strategies that every healthcare professional, parent, and patient should know.
Drawing on current guidelines and real-world clinical insights, this episode aims to demystify anaphylaxis and empower listeners with the knowledge and confidence to act swiftly when seconds truly matter.
Sources:
A...From Risk to Resilience: The IMPACT Peanut Study
Peanut allergy can make everyday life stressful — from birthday parties to school snacks. But what if there was a way to help children build protection instead of just avoiding peanuts altogether?
In this episode, we dive into the Immune Tolerance Network IMPACT trial, a groundbreaking study testing whether tiny, carefully measured doses of peanut protein could help young children live with less fear and more freedom. We’ll break down what the research found, what it means for families right now, and where peanut allergy treatment might be headed next.
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Double Trouble: Unpacking Nut and Sesame Seed Co-Allergy in Europe
In this episode, we dive into a groundbreaking European multicenter study that sheds light on the often-overlooked overlap between nut and sesame seed allergies. Why do so many children allergic to tree nuts also react to sesame? How can we accurately diagnose and define coexistent allergies through challenge-proven testing?
Join us as we unpack the methodology, clinical significance, and real-world implications of this important research. Whether you’re a clinician, researcher, or allergy-aware parent, this episode explores key findings that could influence future diagnostic pathways, dietary management, and allergen labelling policies across Europe an...
Peanuts, Pills, and Progress: The AR101 Breakthrough
In this episode, we dive into the fascinating world of oral immunotherapy (OIT) and explore the efficacy and safety of AR101 (now known as PTAH)—a groundbreaking treatment designed to reduce the risk of severe allergic reactions in children and adolescents with peanut allergy.
We unpack the science behind this novel therapy, discuss key clinical trial findings (including the pivotal PALISADE study), and explore what AR101 means for families living with the daily anxiety of accidental peanut exposure. Along the way, we reflect on the balance between desensitisation and quality of li...
Nutty About Allergies: The Peanut Problem
Peanuts – love them or fear them, they sure know how to cause a stir. In this episode, we’re diving into the nutty world of peanut allergy—why it happens, how to spot it, and what you can do if you or your child has it.
We’ll bust some common myths, chat about how early peanut introduction might actually help prevent allergies (yep, really!), and hear real-life stories from families living with peanut allergy every day. Plus, we’ll talk about what to do in an emergency and what new treatments are on the hor...
Peanut Allergy Prevention: Does Early Exposure Stick? Insights from LEAP-ON & LEAP-TRIO
In this episode, we explore the groundbreaking LEAP-ON and LEAP-TRIO studies — follow-ups to the landmark LEAP trial that showed early peanut introduction in infants at high risk for allergy can dramatically reduce the development of peanut allergy. But does the benefit last if peanuts are later avoided?
Join us as we unpack the latest research on the durability of early allergen exposure, why it matters for families and clinicians, and what it means for allergy prevention strategies worldwide. Whether you’re a parent, healthcare professional, or just curious about food allergies, this episode offer...
