Find relief from hay fever, seasonal and year-round allergies, and itchy hives. Our allergy range includes once-daily, non-drowsy antihistamines such as cetirizine (Zyrtec), loratadine (Claritin, Alavert) and fexofenadine (Allegra), which ease sneezing, a runny nose and itchy, watery eyes for up to 24 hours.Not sure which one to choose? Read our guide: Zyrtec vs Claritin vs Allegra.Some products in this category are prescription medicines. Check each product page for details, and always follow the advice of your doctor or pharmacist.