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Published on: 12/2/2025

How is shingles treated, and when should you start antiviral medication?

Shingles is treated with antiviral medications, which work best if started within 72 hours of the rash appearing.

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Explanation

Shingles, also known as herpes zoster, is a painful rash caused by the reactivation of the chickenpox virus. To treat shingles, doctors often prescribe antiviral medications. These medications help reduce the severity and duration of the symptoms.

When to Start Antiviral Medication:

  • Antiviral drugs are most effective when started within 72 hours (3 days) of the first appearance of the rash. Starting treatment early can help lessen the pain and speed up the healing process.

Common Antiviral Medications:

  • Acyclovir
  • Valacyclovir
  • Famciclovir

These medications can help prevent complications like postherpetic neuralgia, which is a long-lasting pain that can occur after the rash has healed. If you suspect you have shingles, it is important to see a healthcare provider quickly to discuss treatment options.

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