Oftentimes, spring can bring a lot more with it than just sunny skies and warm weather. It can also bring on some of the worst allergies imaginable. Being prepared for the onslaught of pollen is as easy as shopping CVS . As part of their huge selection of sales this week, allergy products are 20% off via coupon code ALLERGY20. In addition to CVS's own band, look for medications from the likes of Zyrtec, Allegra and others. Coupon expires 03/17/2013.