What is Aciclovir?
- Aciclovir is an antiviral medication.
- It is commonly taken in tablet form to treat conditions such as genital herpes, shingles, or severe chickenpox.
- Aciclovir is also available as a cream to treat cold sores directly.
- For individuals with weakened immune systems, aciclovir may be taken daily to prevent infections caused by herpes.
- Be sure to read the patient leaflet for a complete list of potential side effects and precautions.
How does Aciclovir work?
The herpes virus can cause blisters on the skin, lips, or genital area, which can be very painful. Aciclovir works by preventing the herpes virus from multiplying in the body, which helps stop the infection from worsening, allowing the pain to subside and the blisters to heal. However, the herpes virus can remain in the body, meaning symptoms may return in the future, even after the infection has cleared.
This is why some people experience recurring cold sores, despite treatment each time. It is also one of the reasons why it is important to avoid close contact with someone who has a cold sore or genital herpes, as the virus can be transmitted.






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