Like the iceman, fall cometh, bringing with it a full arsenal of allergy triggers. Xyzal offers a free sample of its 24-hour medication to help the cause. Fill out the form to get your sample, but consult your healthcare provider before taking it. Shop Now Tips Use as directed. Limit one order per household. Features purports to relieve sneezing; itchy, watery eyes; runny nose; itchy nose and throat for 24 hours