Some may require it every day, while others need it only during cold or allergy season.

CNN: How to deal with your child's asthma

They stopped selling tobacco products in 1996, and were the first national retailer to voluntarily decide to place all cough, cold and allergy products containing Pseudoephedrine (PSE) behind the pharmacy counter (which is good for mankind but a pain for me since I am an allergy sufferer, but I support it of course).

FORBES: Myth: Ethical firms aren��t Profitable

The cold snap could either delay the start of the allergy season, or give it a head start, depending on how close the trees are to releasing pollen.

CNN: Predicting allergy season eludes experts