Allergic rhinitis is a chronic respiratory disease with a major impact on quality of life. In a study looking at the burden of allergic rhinitis amongst UK patients 75% reported some impact of their allergic rhinitis symptoms on health-related quality of life. Allergic rhinitis currently affects 10-30% of the world population with prevalence and impact continuing to increase. This leads to substantial economic costs both of prescription medication and time taken off work by both patients and carers due to the disease. In view of this, there may be a substantial need for improved therapy or management to ensure that patients with allergic rhinitis can carry out a normal lifestyle.