"Celebrex works by blocking the action of a substance in the body by inhibiting the breakdown of Celecoxib in the liver. Ask your doctor, nurse, or pharmacist any questions you may have about this medicine."
"Ideally, you should start using Zovirax as soon as you feel the tingle of a cold sore. Treatment with Zovirax as soon as possible after your symptoms begin. You can use scientifically proven Zovirax at any stage during the cold sore. Follow the directions for using Acyclovir provided by your doctor."