Valtrex (valacyclovir) is commonly prescribed for people who get cold sores. Taken as needed at the first sign of an outbreak (e.g. before it’s visible but when

Valtrex (valacyclovir) is commonly prescribed for people who get cold sores. Taken as needed at the first sign of an outbreak (e.g. before it’s visible but when you feel it coming) it can often prevent or reduce the outbreak. Your PCP should be able to do this for you. You’ll just have a bottle on hand and you’ll use it for only two or three days whenever the outbreak happens.