Your doctor may recommend suppressive treatment. If you are having fewer than 10 outbreaks per year, 500 mg each day has been proven to be effective. However, if you have 10 outbreaks or greater, 1000 mg pill per day is needed for effective suppressive therapy.
500 mg costs $0.97 per day or $87 for a 3 month plan ($29 per month)
1000 mg costs $1.60 per day or $144 for a 3 month plan ($48 per month)