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.
I am26 and my allergies are out of control in the spring. What gives? Allergic rhinitis, also know as seasonal allergies or hay fever, is a common condition that affects thousands of Americans. The physiologic process behind allergies is actually an abnormal response of the immune system to a harmless substance.