Cold Sore Spread While on Acyclovir: What You Need to Know

While taking acyclovir, cold sores can still spread, though the risk is reduced. Acyclovir shortens outbreak duration and severity but does not eliminate the virus from the body. Transmission can occur through direct contact (kissing, sharing utensils) with an active sore. Practice good hygiene and avoid contact with others during an outbreak to prevent spread.