Relieves your worst allergy symptoms, indoors and out.*ZYRTEC (cetirizine HCl) relieves runny nose, sneezing, itchy nose or throat and itchy, watery eyes due to indoor and outdoor allergies. Get the fastest 24-hour allergy relief.*** Relieves sneezing, runny nose, itchy, watery eyes and itching of the nose and throat.** Among name brand Otc products.