Is Acyclovir Topical addictive?
Last updated September 7, 2026.
**No, topical acyclovir is not addictive and does not cause physical dependence or withdrawal.** You may need treatment again because herpes can reactivate, not because your body needs the medicine. Acyclovir treats an outbreak but does not eliminate the virus or prevent future outbreaks. Cream and ointment have different uses and dosing instructions, so follow your prescription label. Start treatment promptly and contact your clinician if your sores worsen or do not improve.
What to do
- **Follow your label:** Use the prescribed amount and schedule because cream and ointment have different instructions.
- **Start promptly:** Begin your prescribed cold sore treatment at the first tingling, redness, or itching.
- **Wash your hands:** Wash before and after applying acyclovir cream.
- **Protect your eyes:** Keep skin cream and ointment out of your eyes and the inside of your mouth or nose.
- **Seek a review:** Contact your clinician if your outbreaks are frequent or your sores worsen or do not improve.
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