Piriteze allergy tablets triple pack are used to treat the allergic symptoms of hayfever such as itchy or watery eyes sneezing and a runny nose and other allergies eg pet house dust mites and mould spore allergies they can also be used to relieve the rashes and itching of chronic urticaria hives the active ingredient is cetirizine hydrochloride which is an antihistamine which can help to relieve the symptoms of some allergies and itchy skin rashes as an alternative doctors can also p