Allevia Hayfever Allergy Tablets, Prescription Strength 120 mg Fexofenadine, 24hr Relief Acts Within 1 Hour, Including Sneezing, Watery Eyes, Itchy and Runny Nose, 7 Tablets. You can take Allevia for the effective relief of hayfever, pet allergies, house dust mite allergies and mould spore allergies.