Cold sores are painful and oozing, and they always seem to appear before that wedding or class reunion. Also called fever blisters, the small, fluid-filled lesions typically form near or on your lips ...

Valtrex (valacyclovir) is a brand-name oral tablet that’s prescribed to treat or prevent certain viral infections, including cold sores, genital herpes, shingles, and chickenpox. The cost of the drug, ...