How is Hay fever (allergic rhinitis) diagnosed?
Allergic rhinitis is usually diagnosed from symptoms alone, especially in the case of hay fever. Perennial rhinitis is more difficult to diagnose, your doctor might suggest you keep a record of all your symptoms, when they occur and when they are at their worst. This might help identify what is triggering the symptoms to occur. Your doctor may suggest you have an allergy test to confirm exactly what you are allergic to.