Allergic rhinitis is a general term used to describe the allergic reactions that take place in the nose. Symptoms may include sneezing, congestion, runny nose, and itching of the nose, the eyes and/or the roof of the mouth. When this problem is triggered by pollens or outdoor molds, during the Spring, Summer or Fall, the condition is often called "hay fever." When the problem is year-round, it might be caused by exposure to house dust mites, household pets, indoor molds or allergens at school or in the workplace.