Aerius oral solution reduces the symptoms of allergic rhinitis, which is an allergy-induced inflammation of the nasal passages, such as hay fever or dust mite allergy. Sneezing, a runny or itchy nose, an itchy palate, and itchy, red, or watery eyes are some of these symptoms. Additionally, Aerius oral solution is used to alleviate the symptoms of urticaria, a skin condition brought on by an allergy. Hives and itching are among these symptoms. You can resume your regular daily activities and sleep after these symptoms subside, which lasts for the entire day.