Claritin, 12 Hour Allergy and Congestion, 30 TabsProduct Description Temporarily relieves these symptoms due to hay fever or other upper respiratory allergies: sneezing, itchy, watery eyes, runny nose, itching of the nose or throat.. Temporarily relieves nasal congestion due to the common cold, hay fever or other upper respiratory allergies. Reduces swelling of nasal passages. Temporarily relieves sinus congestion and pressure. Temporarily restores freer breathing through the nose. Indoor and