Allergic diseases including asthma, eczema, allergic rhinitis and food allergies commonly occur in paediatric populations globally and often co-exist with one another. These children usually present with eczema and subsequently go on to develop food allergies, allergic rhinitis and asthma subsequently as they get older. This is often described as ‘the atopic march’. It is possible that children who have both asthma and food allergies are at an increased risk of more severe asthmatic episodes but may be more susceptible to food allergens triggering either an asthmatic episode or food-related anaphylaxis.
Dr Ru-Xin Foong, Clinical Lecturer in Paediatric Allergy, King’s College of London/Evelina Children’s Hospital (GSTT)