Worldwide, more than 400 million people have allergic rhinitis, and sick-leave due to this condition costs societies billions of dollars annually1. Allergic rhinitis is most commonly treated with oral antihistamines and intranasal corticosteroids2. For moderate-severe rhinitis with poor control on topical treatment, immunotherapy should be considered3. Allergen immunotherapy is the only disease-modifying treatment available for IgE mediated allergy.