Although both rhinitis and asthma may not always be due to allergies, allergic rhinitis and allergic asthma are indeed linked.

Rhinitis affects the nose (upper airways) while asthma is an inflammation of the lungs (lower airways). The relationship between rhinitis and asthma has been the scope of recent epidemiological surveys, basic research studies, and clinical trials. Evidence shows that rhinitis and asthma are intimately linked, suggesting the concept of "one airway, one disease".

Rhinitis is a risk factor for asthma. Improvement of allergic rhinitis symptoms can be associated with resolution of asthma symptoms and worsening of allergic rhinitis symptoms can be associated with exacerbation of asthma symptoms.

Appropriate management of allergic rhinitis can decrease the risk of asthma developing or exacerbations. In any event, rhinitis should always be treated.

"Does Rhinitis lead to Asthma?" is an information campaign of the Global Allergy and Asthma European Network, GA²LEN. For more info on rhinitis, asthma, and what you can do to improve your quality of life despite these conditions, download the patient leaflet prepared by GA²LEN.