As an STD assistant, I understand your concern about potentially spreading herpes while taking valacyclovir. Valacyclovir is an antiviral medication that can help reduce herpes outbreaks and lower the risk of transmission, but it does not completely eliminate the possibility of spreading the virus. Even with medication, there is still a small risk of transmitting herpes through sexual contact, especially during active outbreaks. It's essential to practice safe sex by using protection like condoms and avoiding intimate contact during outbreaks. If you have any other questions or need further support, I recommend consulting a healthcare professional for personalized guidance. Remember, open communication and taking precautions can help manage the condition effectively.