IGHE and allergic rhinitis: Seventy‐one percent had a parent with allergic rhinitis or asthma; 53% had positive prick tests for at least one allergen amongst birch, hazel, olive trees, grass, pellitory, ragweed, wormwood, D. farinae, D. pteronyssinus, Alternaria, and cat and dog dander, whereas 60% had specific IgE positivity for at least one of these allergens.