Herpes is an extremely common infection caused by the transmission of the Herpes Simplex Virus. Once acquired, individuals will experience genital or oral ulcers (outbreaks) for the rest of their lives. The severity of outbreaks changes over time, with the initial episode generally being the most painful and emotionally difficult. Prescription antiviral medication, Valacyclovir (Valtrex) helps decrease the severity and frequency of herpes outbreaks. Keep meds on hand, and take what you need as soon as you need it to avoid painful outbreaks.