Rhinitis involves inflammation of the mucous membranes that line the nasal passages. Symptoms may include itching of the nose, roof of the mouth, eyes and throat. Some people also suffer from sneezing, runny nose and watering eyes.

Often caused by allergic reactions - commonly house dust, house dust mite, pollens, animal hair, moulds, perfumes, bleach, solvents, tobacco smoke and vehicle exhaust fumes.

A Swedish study found it was linked to eczema.

Mold Allergy And Other Mold Related Health Issues
The leading cause of health problems associated with mold is the common mold allergy. Many who believe they are being poisoned by toxic molds are actually experiencing a mold allergy.

Summer Colds
Summer colds always seem worse than winter ones, but is this because they're not really colds?

Also look at the hay fever articles.