Histaclear® provides once-a-day non-drowsy relief from the symptoms of hay fever, such as runny nose, nasal and sinus congestion, itchy nose and eyes, and sneezing.For relief from the symptoms of hay fever (seasonal and perennial allergic rhinitis) such as runny nose, nasal and sinus congestion, itchy nose and eyes, and sneezing. It may also be used with skin allergies to relieve itching and rashes.