Hope & Histamine: The Paediatric Allergy Podcast

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...

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 P...

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 dow...

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 explo...

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...

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 w...

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 Immun...

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 spec...

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 d...

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...

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 a...

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...

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” wit...

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 m...

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 ho...

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 yo...

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...

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 BSA...

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 shoul...

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...

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-wo...

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 stud...

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 p...

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...

In this episode, we dive into the groundbreaking LEAP (Learning Early About Peanut Allergy) study , which transformed how we understand — and prevent — peanut allergy in children. We explore the science behind early peanut introduction, the study’s design and results, and what it means for parents, clinicians, and public health. Join us as we unpack the evidence, bust common myths, and discuss the...