1 This condition is an inflammation of the smallest blood vessels (capillaries) of your skin, joints, bowel and kidneys. 2  Signs and symptoms include abdominal pain, blood in the urine, joint pain, and a rash on your buttocks or lower legs.
Description. Allergic rhinitis (AR) is the most common allergic condition and one of the most common of all minor afflictions. It affects between 10-20% of all people in the United States, and is responsible for 2.5% of all doctor visits.
âRhinitisâ means inflammation of the lining of the nose. It is sometimes called âhay fever.â Allergic rhinitis can be caused by allergies to pollen, animal dander, house dust mite, and mold spores. If you have allergic rhinitis, your nose becomes stuffy, runny, and itchy.