Asthma Foundation
Good asthma management requires appropriate treatment of allergic rhinitis. Most people with Asthma – up to 80 per cent – have allergic rhinitis and more than 60 per cent with allergic rhinitis also have asthma.
Effective treatment for allergic rhinitis (hayfever) can reduce the chance of severe asthma attacks.
Source:Pharmacy News 11th September, 2008 page 13