Practical guideline for the management of allergic rhinitis in Japan 2024.

The Practical Guideline for the Management of Allergic Rhinitis in Japan was first published in 1993. After the COVID-19 pandemic, the current 10th edition was published in 2024. The most recent collection of evidence from the literature, such as the sustained post-treatment effect of sublingual immunotherapy on Japanese cedar pollinosis, was added to the revised guideline, which incorporates evidence-based medicine. In this revised guideline, a diagram illustrating the pathogenesis of allergic rhinitis and the mechanisms of action of various pharmacological treatments has been added. Also included is a diagram that shows the mechanism of action of allergen immunotherapy and a more detailed description of the oral allergy syndrome. The clinical question and answer section was also revised along with the introduction of new questions, such as: Does anti-IgE antibody treatment effectively reduce the symptoms of severe seasonal allergic rhinitis? Also updated was the evidence-based step-by-step strategy for treatment.