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. The fastest 24-hour allergy relief** now in a liquid gel.* Relieves sneezing, runny nose, itchy, watery eyes and itching of the nose and throat.**Among name brand OTC products.